You heard on the news of many people going missing, and showing up days later in a ticklish coma, after being tickled so long by a new dangerous group of clowns who drive a bus and kidnap people and tickle them while telling jokes

You think nothing of it, but while you were out jogging you hear a tune playing, behind you a colorful bus was gaining on you, you try to run but someone reaches out of the door and snatches you in, you're put on a bus seat as the seatbelt holds you down and your feet are slipped through two holes in the seat in front of you, you're surrounded by clowns as they toss your shoes and socks off