Overheard

Staff physician nextdoor to a very very frequent flier:

"Hello sir! I've seen you here a few times before. What brings you back?"

Patient: Wasn't me, I've never been here before.

SP: Actually you were here two weeks ago, and one week before that, only you were wearing an eye patch last time.

Patient: Wasn't me.

SP: Sir, it was you. All your other features are exactly the same.