And illegal.
You're tampering with the store's business practice, and removing a label for an item that someone else will be looking for. If caught, you'll be kicked from the store immediately, and they may contact the authorities.
Hanging the papers / notes that we have mentioned in this thread
here is ok since it doesn't interfere with their day to day business or cause confusion. Technically, you're leaving "garbage" on their Joe Pegs.
The other one, you're purposely misleading the employees and other customers into thinking there's more available than there is.
