(no subject)

Had a customer today with a brown shirt on that had a diagram of a molecule on it. I have forgotten most of my periodic table knowledge, so I couldn't figure it out. It had "N" and "O" and "CH[little 3 down the bottom]" on it. I asked him which molecule is was, and he said it was caffiene. Brilliant! There was a website up the top on the back, but I wasn't able to see it properly and I don't know what it was.