When a super religious woman has to lie about boning her husband while her dipshit, deadbeat son is playing call of duty in the living room. Occurs daily.
When one is extremely tired and desperately needs sleep. The best time to go is during your math class.
John: "Hey bro i'm really dead today I could use a nap"
Mary: "Oh shit bro Algebra is next hour you can get naptime in then"
John: "Man you right Mary"