Philosophy Professors

A philosophy professor was at a party and became indignant when asked if it was true that all philosophy professors were absent-minded.
“No, they’re not absent-minded. Don’t you think I know where I am right now, and don’t you think tomorrow I’ll know where I was last night? Would somebody like to ask me another  question?”
“Yes,” said another guest. “Is it true that philosophy professors are absent-minded and have bad memories?”
“Oh God!” said the professor. “I knew sooner or later somebody would ask me that question.”