I have recently drawn a picture, you can see it here:
http://img.villagephotos.com/p/2003-8/298460/TheSubstituteTieWithWords.JPG
You can add your own captions to this picture if you want. The funniest, wittiest one (or ones) will win. Win what, you say? Well, nothing except the satisfaction in knowing that you, yes, YOU said something “funny and witty”. Or you could just imagine that you win a home entertainment center. Or a toaster oven.