One time I got trapped in a store because the door was behind the counter where the register was and a guy was sitting there the whole time. I decided not to buy anything, but I looked around for a while so I felt like he might question me. So I just kept pretending to look around which made it even more awkward to leave empty handed.

I think I decided not to buy anything after 20 minutes but spent a whole hour in there trying to figure out how to leave