Oh I have the kids, 2 who both know how to open the door - I also use the handicap stall when I can - so we can all fit in - and then I can't reach the door when someone decides they've had enough!
I have also used the mens room, more than once at differnt locations - when the line for the ladies was around teh block and I just HAD to go - I yelled in the mens room - INCOMING FEMALE - then walked STRAIGHT into a stall. (had a female companion - at concerts and clubs)
Only once had a complaint - a real whiny guy - he must have had somethign to HIDE!