No, wait.
because they take everything literally (p.s. you can steal this joke if you want)
Ask her if she is a Bernie Sanders supporter.
There she blows!!!
Sue.
Soak it in petrol and put a match to it. (This is a joke, not and instruction, Reddit)
Because they would crack each other up.
One waits till you're 14 before coming on your face.
Wait.
Because she was the Headmaster! My first submitted joke :)