It's the morning after the 4 guys have checked into that motel...right before E.L. goes to get the school bus. Right before Rubin walks in to ask the motel clerk (Andy Dick)if he has any pot, we see the clerk watching Bob Ross (the painter) on his T.V. If you look closely, you can see the clerk's reflection in the T.V. ...and he's laughing!! Oooops!