A dude throws a crazy party that got out of hand, and a grandma heads to jail for making whoopee in public.
HIMYM Series Finale Airs on March 31, 2014 "Woooo!" -- Robin (Cobie Smulders) rediscovers the "Woo Girls," a group of single girls who like to go out and party. Meanwhile, on HOW I MET YOUR MOTHER, on the CBS Television Network. Jamie-Lynn Sigler guest stars as Jillian. Photo: Karen Neal/Fox