They only care about their delivery, nothing else, and as such will try and get the items unloaded as close to their place as possible.
Some places I have delivered too in a rigid have been tight and complicated and other times relatively easy, until you come to leave. And of course, there have always been bigger trucks than yours in that yard/site/delivery area as they are just trying to belittle and abuse your self esteem and see how far they can go with bullying you in their own way.
lol…ok …my worst .
must have been late 80s and i was on multi drop work eire //ulster from scotland and ,wwell the driver walked out /run forrest…from a foden (big round headlight type) pulling a stepframe van wi the axles right at the back ,i was usually on a drag…things went ok for the first couple o days …must of had 40+ drops on and i had a drop wi just an area and a phone # on…so found a box phoned up for directions ,and CAN YOU GET AN ARTIC IN OK…no probs drive we have our own in yrd …
sooo found the bloody place it was back of beyond + a couple o miles further on 
well down this narrow lane ,ok says i wheel tracks on verge so trucks come down …round a couple o tight corners and f me i have to turn into a old farmyard wi f all room to swing …so jump out of cab and boy comes out and says use the concrete vedge on corner that pushes your wheels over letting you get inthrough gap into yrd …well it was black wi tyre marks and fed if i could reverse back…boy also says plenty room in yrd
well got into yrd went throught that into another farm yrd type.
boy on flift tips his stuff in no time flat …
ok which way out mate ■■,where can i turn round?
boy says same way in /out …!!!
i suddenly notice this iused to be a bloody dairy farm …it still had the supports where the pipes used to be sticking about 3ft out all the way round and no joking it was only about 20-30ft wide at widest point…
by now i had an audience and i went nuts on this boy about lying about having a artic in the yrd …there it is in the shed says he …a poxy baby bedford pulling what looked like an ex BR .mini trailor!! 
well i started trying to get out ,long story short ,had to open back doors to get extra reverse room (supports etc,) find a sleeper to put up against wall to push wheels over …all in all close to 2-3hrs of cursing /swearing /sweating to get out
. Never again did i drive an artic for the firm ,stuck to my drawbar…
jimmy
Many years ago when doing multi drop on rigids and doing my Shropshire run I had a new customer delivery.
Single track lane so phoned ahead to see if I could turn at the bottom as it was also a dead end.
Yes you can was the reply.
So off I trot down about 3 miles of single track to deliver.
Get to the bottom and there is no space to turn at all,to say I was bit ■■■■■■■ ■■■■■■ off was an understatment.
The 3 mile reverse back up the single track with nothing but bushes in the mirrors was a joy.
Told TM it was a bad tip and a joke delivering there.
The following week on my shropshire run the same customer so phoned and said they would have to come to the top of the lane if they wanted their stuff and ferry it down.Once again I,m told there is space to turn,obviously not thinking it would be possible the same driver might just be delivering there again.
Point blank refused to drive down there and made them come to me get the stuff 
they also complained to my TM.
Not that I cared I told the TM that I would not be driving down that lane ever and they can come to me.
They stuck another driver on it the following week and he had the exact same problems I did and moaned he got told he could turn and then found he couldn’t and had to reverse out
In the end we dropped them as they refused to come up the lane and we refused to go down it.
They only had a small order anyway so it wasn’t like a multi million pound contract was lost.
Same stories when I worked on home delivery too,nightmare.
A good for home deliveries that we use is ask the customer “Does your dustcart come in here?” Normal answer “Of course not, we have to leave the bins up the lane”
I had a note on a ticket one day that read;
“No reversing onsite. Beware of cables. Beware of weak manhole cover. Please keep off the grass.”
The site was actually a doddle, I could almost turn full circle, the cables were a good 100m away and I never saw a manhole but thanks for winding me up en route with the instructions.
I used to do a lot of home deliveries and I remember one day leaving a bloke in a nice area of Edinburgh, who I inconvenienced by asking him to move his car, with my thought of the day. if I cant get my 17-tonner down here then neither can a fire engine so I hope you can live with yourself if one of your neighbours dies in a fire because of your car. No idea if the message got through but it made me feel better.
Went to a site in a 7.5t cherry picker in the valleys in S.Wales. Squeezed up there, manoeuvred around quite a tight yard and stopped on the other side with views across the valley. Mobile phone transmitter to one side and had to get the outriggers out on that side with the drivers side against the drop off on the other side just to get the job done.
Getting out was a nightmare, spent half an hour just trying to manoeuvre to get around a couple of dead animal carcasses that had ‘appeared’ whilst we were there. The farmer who owned the farm had come in, dropped them off and left, yet knew we were there. The smell was, as ever, the smell of sheep dead for a week or so and rotting and purifying…
Finally out on the actual tarmacked road and the comms guys with me left sharpish to get to their next job and I then found I couldn’t actually get out.
When I had drove in I noticed the branches rather low on the road. On leaving I found the roof beacons were in the way and the only way to get through was to dismantle the beacon.
So I did. Got back to the yard and the boss had a go at me for obviously breaking the beacon. Having already wound the boss up already i waited for the criticisms to stop before pointing out it was a bit tight so I had dismantled and removed the beacon only to find that I didn’t have the right tools to put it back together 
After that I’ve usually walked the route before hand and if necessary have refused to drive on.