I' ve done it in past years. Only takes 5 days or so for the can to be gone. Deer, coon, squirrels, just about anything will take a turn. The only way I' ve heard to have it exclusively for deer is to find an open spot that squirrels can' t jump to. Take a pvc pipe, put a slinky over the outside of it and cut a small piece of plywood and screw it to the top of the pipe. Then put the PB on top of that. Never tried it but it sounds like a good idea. The slinky is supposed to keep squirrels from scurying up the pipe.