

TV-Y7
S1 • E13 Feb 14, 2013 23m7.8
Mabel bets Grunkle Stan she'll make more money at the Mystery Shack by treating people nicely than he does by being rude and cranky. He heads off to win a fortune on a TV game show while she deals with lazy employees and a real monster captured by Dipper. She soon realizes why Stan is such an unbearable grouch.