 CONT: During "King of the Mountain", Rick is seen taking a drink  that he holds in his mouth in order to win the race. A few frames  later, after Jenny Flashes Pigpen, hes seen with an open mouthed  smile looking at Pigpen after hes wiped out. He then does a flip  and loses the rest of the beer in his mug. Theres no way he could  have smiled with all that beer in his mouth without losing it, but  he still has beer at the end.