Dartford Bridge Question

[waynedl]

Santa:
Onece apon a time I took an artic (only a little 4 axle job) through Rotherhithe. Now that was an experience… This wasn’t me but it gives some idea:

http://www.youtube.com/watch?v=uwvGfn97b7w

Don’t see the problem myself, but that guy has 1 EVIL laugh