CAUTION: Glass! Use Door.

Today, I visited one of my company's sister buildings to pass out the new 2009 catalogs. We were set up in the back of the cafeteria, near a rear entrance into the eatery. I know several people who work at this building and told them to stop by the catalog table and chat. The entrance we were closest to was a simple door next to a full-length (floor to ceiling) pane glass window. Through the window I saw one of my friends approaching. He seemed as though he was walking at a pretty normal pace and then SHMACK! Ha ha, he pretended to crash into the pane glass window. I thought, wow, that was a pretty loud smack for just pretending. Wai-wait, is he rubbing his head? Yes, yes he is. No, he's still pretending, right? He's clearly been in and out of that door several times before and clearly, since there is a door right there, there wouldn't just be an opening right next to it...right? Well, apparently, he was really eager to get his new catalog and actually did smack right into the pane glass window- with full force. Leaving a nice pink goose-egg on his forehead and face smudge on the window.