Having driven LST’s for Gregorys Cullompton I once bent a safety yellow handrail leaving the yard on sharp left turn to exit yard due to double parked trucks at the wash, Had 3 ft clear from the handrail, bent it over by 4 inches but didn’t feel it or hear it ( radio 2 on). When I got to Birmingham got a call from the office asking if I had damage truck or heard it. Said no had a look around the truck there was a tiny bit of yellow paint on the off side corner, so yes I hit it hands up. They have had loads of damage in the yard from LSTs manoeuvring in the dark, one brand new milk tanker which had just been delivered got hit by a young driver spinning around got major damage. Easy done in tight spaces.