"It's Always Sunny in Philadelphia" Mac Is a Serial Killer (TV Episode 2007) - Danny DeVito as Frank Reynolds

Charlie Kelly : Hey Frank, what guy hasn't done some extensive research on his own genitalia? Don't say you, buddy, 'cause I woke up to you doing some pretty frantic research last night, pal!

Frank Reynolds : We can go tit for tat on that one, so you better drop that subject!
Dennis Reynolds : [the gang talks about the city's serial killer as Mac suddenly walks into the bar] This guy got laid last night!

Mac : [nervously] No, I didn't!

Dennis Reynolds : Yeah, you did. You didn't come last night.

Mac : Yes, I did!

Dee Reynolds : Yeah, those are the same clothes you were wearing yesterday.

Mac : No, they aren't. They're different clothes.

Dennis Reynolds : Hey, what's with those scratches on your neck?

Mac : Scratches? What scratches? I've... I've gotta take a piss. Stop asking me questions.

[runs into the bathroom]

Dee Reynolds : Well, that was weird.

Charlie Kelly : I wonder what got into him.

Frank Reynolds : Serial killin'!
Frank Reynolds : I'm going to go oil my chainsaw.

Dee Reynolds : What?

Dennis Reynolds : Frank, we don't need the chainsaw. Is that what's in that bag?

Frank Reynolds : Oh, we do... because drawing a confession out of someone is like doing a beautiful dance... a beautiful dance with a chainsaw.

Dennis Reynolds : He makes less and less sense as the days go by.

Dee Reynolds : I don't get it... at all.

Danny DeVito: Frank Reynolds