Math

Me (telling someone about my Bloomsday experience):  I walked it with a friend from college.  It had been exactly 20 years since she and I walked it last time!

Morgan:  Really?  What were you - 10 years old?

Me:  Uh, yeah.  I was ten.  (and then I kissed him!)

Morgan:  Oh, you were 19.....

Me:  Yeah, I guess I was 19.

Too bad that kid's so good at math!