One of my dads mates who lives out in tha woops used to have trouble with some wildlife (boars) knocking the rubbish bins over and tearing all the bags apart to scab food.
So one day he made a massive Mull cake and left half of it outside in a small box over night. When he came out in the morning the whole thing had been torn apart and there was f*ck all cake left.
He said after that the bins never got touched again.