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It's Always Sunny in Philadelphia

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

question. Apparently, secrets and lies

lead to guilt stressors and that's not good, you guys.

- I have read that. - Oh, really?

Yeah, yeah. Well, it's science.

It's Always Sunny in Philadelphia
Season 10, Episode 10
Ass Kickers United - Mac and Charlie Join a Cult
Image #289

You know why? It impedes muscle development.

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question. Apparently, secrets and lies

lead to guilt stressors and that's not good, you guys.

You know why? It impedes muscle development.

- I have read that. - Oh, really?

Yeah, yeah. Well, it's science.