Identification Hesitation

Pardon me but aren't you -- Oh, no. You're not How foolish of me Please excuse But, say Wait a second Weren't you -- No, I guess not Sorry, my bad Ha! I've got it We met at -- Oh, no we didn't It was someone else Mea culpa What's that? You're my landlord? The rent's past due? Impossible, sir You must be having a bad day ~ I guess I'll be going my way