Am I the only one who noticed this? Terrence and Phillip's voices switched in "Not Without My Anus". Actually, I guess this isn't such a rare goof, because on "The Simpsons", Rod and Todd Flanders' voices have switched.
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"Uh, okay, but ya only got 5 minutes. This place is turning into a Starbucks."
" Ahhh, There's nothing like a cigarette... unless it's a cigarette lit with a $100 bill!"