My Grandfather used to work for this electrician company. He used to bring a sandwich every day to work for lunch and he would leave it in a fridge to keep it fresh. Problem is, every day he would retrieve his sandwich for lunch only to find that someone had eaten it.
He lives out in the country and a large cow pasture resides nearby. Full of heaping cow patties. He grabs one of them and sticks it between two slices of bread so that it’s literally a poop sandwich. He sticks it in a paper bag which he then would leave it in the fridge at work. That same day he came to retrieve his “sandwich”, someone had actually taken a large bite out of it.
From then on he brought actual sandwiches to work, but nobody ever ate his sandwiches ever again.