You need an IRD (improvised revenge device) fortunately, as an ex IRA (International Rodent Attacker) soldier, I long ago perfected the ultimate IRD, an open face peanut butter sandwich.
100% effective and they never learn to leave them alone. You see, they like peanut butter better than bread so, they eat the peanut butter off the sandwich first but, they don't want to let the bread go to waste. Couple that with the instinct to keep it all to them selves and you get a critter who stuffs their cheeks with peanut butter and then jams an entire piece of bred on top. Are you starting to get the picture?
Remember the old adage, 'never eat anything bigger than your head.' The doomed rodent discovers too late that he can't chew, swallow or, remove the wadding from his head. As an added benefit, you get to laugh and point at the squirrel while he rolls on his back and attempts to use his hind feet to push on the distended cheeks. The best part is you can get the same squirrel multiple times.