Since we're on the subject...
a) Do you have multiple personalities? (I've always wanted to talk to someone who actually does, to hear how they handle it and such. Not in a textbook case study form.)
b) Do you know anyone who does?
c) Would you say that sock-puppets are a form of multiple personalities?
d) Do you hold an e-PhD in Psychology?
e) Did you steal the cap to my Coke bottle?