This is funny, and true.
A friend of mine (Anne) has a friend who always shows up unannounced - conveniently at dinner time. Anne likes her friend but was becomming tired of feeding her, especially since she never asks and never reciprocates. Anne wanted it to stop but didn't want to tell her friend directly.
Anne like me is a dog breeder, so there are plenty of dogs in the house. Anne devised a plan one day.
After dinner, Anne put the dinner dishes on the floor for the dogs to clean the scraps. This was not unusual, her friend had seen Anne do it before. The difference this time though was that after the dogs finished, Anne picked the dishes up off the floor, examined them (in front of friend), shrugged, then put them directly back the kitchen cabinet with the clean dishes!!
Yup. Friend no longer comes for dinner.
Gee ... would you? ICH.
(and yes Anne washed them after friend left!)