Both ride bicycles and are on a mission.
Nobody asks, 'who's there ' when you try and tell a knock knock joke.
Someone who knocks on your door for no apparent reason.
Bike carbonate of soda!
Psycho-paths. (as told by one of my coworkers)
Because the horse was too heavy to carry.
The cigarette.
A full set of teeth.
They both ride bikes and are on a mission.
F-Well I know you, so I'm expecting very little. Mission accomplished.