As a small child, I was a little klepto but grew out of it.
One time about 10 years ago though, my buddies and I were out bar-hopping on St. Patrick's Day; and after our tour of the local watering holes (being quite intoxicated) we decided to go to a local 24 hr. restaurant to get something besides booze in the gut.
The restaurant was VERY crowded and when it came time to leave, rather than wait in line at the register....i said the hell with it and my buddies and I dine & dashed.