Puz­zled stu­dent: Pro­fes­sor, ac­cord­ing to the syl­labus we have a pa­per due in a week… What’s it on?
Equal­ly puz­zled phi­los­o­phy pro­fes­sor: You have a pa­per due in a week? I was afraid of that!
Puz­zled stu­dent: Al­so, ac­cord­ing to the syl­labus, we don’t even have class to­day. There’s…nothing writ­ten there.
Equal­ly puz­zled phi­los­o­phy pro­fes­sor: Re­al­ly? Huh. Well, I must have been drunk when I did that.

–Ford­ham Uni­ver­si­ty