3. Never have sleepovers.
Learned from: Bridesmaids (2011)
Complex says: Focus on the first thirty-five seconds of this trailer. There 's an accidental sleepover, an awkward attempt on Jon Hamm's part to ask Kristen Wiig to leave, and a girl with obvious commitment issues. The only reason this FWB is still working? He's Jon Hamm; you, however, are not Jon Hamm.
Sleepovers are for couples who want to wake up next to each other and have brunch. But we're talking about the girl who, instead of kissing goodbye, gave you a high-five; she's not down for pretending you're the perfect companion for a croissant breakfast.