it may be clever, it may be amusing. but it's not his property. someone has to pay to replace what he damages.

The advertiser who rented the space probably doesn't care a whit about said sticker. Folks who want their product are going to purchase it anyway. Now the property owner who has to either spend half an hour with a razor blade and goo-gone to remove the sticker (or pay someone to) is probably going to feel otherwise.

Somebody alert Colbert! The bears are arming!