Daddy to Annalivia: Annalivia, did you draw on your kneecap today?
Annalivia: (regarding obvious penmark on knee) Ummmm...no.
Daddy: (skeptical) What happened then?
Annalivia: (thoughtfully) Weeeelllll, I think, yesterday, a little bee made a hole in my tights here (points to ankle) and crawled all the way up... and then bit me!
Daddy: Wow. (Looks at knee again) Hmmm. It sorta looks like pen...
Annalivia: It could be.