Someone who knocks on your door for no apparent reason.
Monk key
Because they speak in tongs. I'll show myself the door
Gloves ... Just kidding, he hasn't opened it yet Knock, knock Who is it Not Michael
Well I'll be a monkey's uncle!"
Because North Korea's long range missiles can't reach that far
It doesn't matter.
There's none. They both knock on the door, but never goes in!
Because they don't like random people knocking on their doors
Someone who knocks on your door at 6 a.m. for no reason.
Burn a question mark on their front lawn.
CAT: *bolts for no apparent reason* ME: *bolts in the opposite direction in case she's after both of us*