Now that's an idea BOB. Kinda something similar happen here. Some dumb ass
was loading a yard tractor on his flat bed trailer next to his Airstream without the flat being hooked up or chocked. When applying the brake on the tractor the trailer rolled forward and went left(has a dolly wheel on the jack) and the corner of the toolbox on the trailer hit the fridge access door and left a really nice scrap mark,an dent and paint on the door. Whats even worse BOB is this was rite here in my own driveway.
Now I have two choices wet sand and cover with a nice flag sticker like yours or replace the door. I think I like the flag idea.
You would think after 70 yrs I would know better and chock a loose trailer.
PS Do you remember where on line ya got the flag sticker.