They come in here to take a daily dump and use my toilet paper. Some unwind some and take it with them. The other day the roll was stolen. These are middle class men and women doing this. WTF?
I personally know a lot of people that have been eating at restaurants and ditching the place as soon as the bill comes lately. Hell, I know a few people that when they want alcohol, they get a table JUST SO THEY DON'T HAVE TO OPEN A TAB!
Put a sign over the toilet ... DON'T STEAL THE TOILET-PAPER, BUY STOCKS AND GET RICH ... it might help.