How not to write an exam

Below is an (edited, so as not to spoil the fun for my students) exam item I nearly missed when I sent in the final exam I’d just finished to my professor.

1. Define “babbling idiot”.
a. one who talks incessantly but intelligently
b. one who talks incessantly without logic, reason or sense
c. one who speaks rarely, but intelligently
d. THE CORRECT ANSWER.

I’m telling you, I’m a slacker’s best friend when I’m tired. I guess I’ll have to prohibit myself from writing exam questions when I’m tired, hungry or in a hurry. Oh wait! That’s ALL OF MY LIFE.