Image shamelessly yoinked from here.

“Dad, I don’t understand.  What is she saying you did?” – Lisa Simpson
“Well, Lisa, remember that postcard Grampa sent us from Florida of that alligator biting that woman’s bottom?” – Homer Simpson
“Oh yeah, that was brilliant!” – Bart Simpson
“That’s right, we all thought it was hilarious, but it turns out we were wrong.  That alligator was sexually harassing that woman.” – Homer Simpson
“And the dog in the Coppertone ads, same deal, Dad?” – Bart Simpson
“That’s kind of a gray area.” – Homer Simpson