Look up great t-shirts for a laugh at whatonearthcatalogue.com

They crack me up everytime!

For my 50th birthday this year I bought myself two shirts:

My doctor says I am in early stages of fossilization. (I teach earth science in a high school)

The other shirt : It is what it is!

My students argued trying to explain it to each other - It sounded like who's on first, what's on second, .... Abbott and Costello routine. I was in stitches.