tell the new guy the truth now guys,
we dont want him getting off on the wrong foot.an empty bottle is an essential bit of truckie must have kit as when you are parked in a quiet handy layby of an evening and its pitch black,then regulary blowing across the top of it making foghorn noises enables you to locate or avoid other truckies out dogging.
this activity is also practised by those members of the trucking fraternity by those gentlemen drivers that dance at the other side of the ballroom from the rest of us,who whilst parked up of an evening ( or daytime by the braver or more desperate),leave their back doors wide open on the pretext of showing off theres nothing nickable inside,when the reality of it is,that all us old hands know full well what they are implying.
this activity is particulary practiced when there is no internet access and they cant log onto grindr.
the best receptical for tizer is an old wellyboot as theres no need to be lifting your bum ut of the seat,or having to stop if your needing a whoosh.
leave it handy and a quick flick of the wrist out the window onto the 1st irritating fanny that annoys you and …hey presto…its ready for use again.
the only downside is that you may need to carry your ppi goggles in the cab as it tends to get a bit wiffy in warmer weather. 
