It was leave your keys at the door.
Because they don't like random people knocking on their doors
ANSWER: Because he's afraid someone would look through the keyhole.
He still has some whistle left in his fart.
I mean think about it, One for Charmander One for Squirtle and one for your second charmander. (found that but it's against rules to post links lol so I'll just leave that here for a good laugh)
Because they always bring boos.
The police made him bring it back again.
Shellfish.
In the toilet.
A key.
Timing.
He opensh hish doorsh with them.