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It's Always Sunny in Philadelphia

S10E10 — Ass Kickers United - Mac and Charlie Join a Cult

You know why? It impedes muscle development. - I have read that. - Oh, really?
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- Oh, shit. - Yeah. It does sound like good science.
It's Always Sunny in Philadelphia
Season 10, Episode 10
Ass Kickers United - Mac and Charlie Join a Cult
Image #744

Yeah, yeah. Well, it's science.

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You know why? It impedes muscle development. - I have read that. - Oh, really?
Yeah, yeah. Well, it's science.
- Oh, shit. - Yeah. It does sound like good science.