De Volta aos Anos 70 Temporada 6 Episódio 17

Donna catches Eric taking care of business in her bathroom and is completely horrified. Afterwards, Erics friends and family tease him mercilessly and Donna cant even look him in the eye. Amazingly, Eric actually manages to make this embarrassing situation worse when Donna finds out what brought on his need. Meanwhile, Kelso, now calling himself Mike and sporting a moustache, goes on a major maturity kick, so Hyde and Fez decide to knock him down a peg or two.