Escorts are a piece of piss to get into without leaving any damage lol
I locked my keys in my old escort enough times (dumb blonde yes I know) all you gotta do is take the bottom window seal off, put your fingers in the gap and pull, the metal bows outwards without creasing, then you just put your hand down and activate the locking mechanism. The door pushes back into its original shape and the window seal fits back on perfectly.
Old Vauxhalls are the easiest by far, but Escorts mk3 / 4 come a close runner up