I had a mishap a few months ago - very hard to explain but here goes.
My large van was squeezed onto the customers drive between two hedges. Not much room down the side of the van.
Sliding side door on the van was open - so as you know it will stick out few inches further than the van sides.
I squeezed down the side of the van from the rear to get the T/M to adjust the throttle or something. I was looking towards to rear of the van but moving forwards, in the narrow gap between van and hedge.
I decided I better look fowards to see where I was going!! As I turned my head from looking backwards to looking forwards what I didn't know that I was level with the rear edge of the sliding door. Clobbered my nose and head on the door.
Can't remember the next few minutes - I know I didn't quite knock myself out / break my nose but I vaguely remember blood on my forehead and a swollen nose and having to sit down with a cup of tea!!
The morale is - something I should have learned years ago - LOOK where you're going - not where you've been!!
Bit like business really
Cheers
Steve