You shouldn't kick people off their bike.
Timmy's friend is riding their new bike which Timmy would like to try riding.
Timmy wants to get his friend off of their bike so that he can ride it.
Timmy asks his friend if they can get off the bike and give him a turn riding it, and they agree.
Timmy pushes his friend off their bike with a forceful push of his foot and starts riding it.
Timmy enjoys riding his friend's bike, and they continue to let him use it from time to time.
Timmy quickly gets into a lot of trouble for kicking his friend.