Oops! Sorry, Don.
When you posted "I did not have sex with . . . uh . . . well . . . um . . . lemme see, now. . . .

Don Firth,"

I read that as "I did not have sex with Don Firth."

That, of course, was a bit hard to believe (you being a lad and having been a teenager and all at one time).
I think that "Don Firth" was just your siggy. You wuz just tryin' to figure out if there's anyone you haven't shad sex with, right?