Quote from Phoebe in The One with the Late Thanksgiving
Phoebe: We're just trying to figure out an excuse. Hey, ooh, how about this? We could say that Monica told us 5:00, not 4:00. That way we're right on time. Or! Or we could plant PCP in the apartment and call the cops on her. Ross: That would be a good way to get rid of all the PCP we have lying around.