Math Emergency

This is from an email my cousin Jayme sent me. It is hilarious! Douglas asked me why I was crying while watching this and I had to explain that when something is really funny, sometimes people laugh so hard tears come out (and sometimes other things, depending on how many children you've had). He must think women are the weirdest creatures ever. We cry when we're sad, we cry when we're happy, and we cry when we laugh. If anything, we have incontinent tear ducts.