Both should be changed regularly, and both for the same reason.
When it gets tired of one spot it just moves to another!
Two. One to assure that everything possible is being done about the situation and the other one to screw it into the faucet.
A cat will lie your face. A politician will lie your face.
Their mouth is moving.
Incontinent
They both need to be changed after a while for the same reason
Someone who shows up to your door for no reason.
Friend has an eyepatch on for some reason or another and I'm running out of decent jokes.
