condiment thief

A pesky prick roommate who always uses up all YOUR condiments. Be careful for these people as they are known for being very slick and sly. They'll use a little here and a little there until it is all gone. Then to top it off they won't tell you they used it so that when you have your meal all ready save for a couple condiments you approach the fridge to find the containers in the fridge all but empty.

the reason why McDonald's hides ketchup and mustard behind the counter