It's also pretty unprofessional to wear jeans to work, and beer after 4:00pm on Friday is just a lawsuit waiting to happen.
Also the schedule that the developers keep is really unprofessional. If one of the accountants tried to show up at 11:00am, they'd be fired!
I also saw some pictures of one of our devs at Burning Man last year. He was wearing some sort of black, canvas skirt, and no shirt.
TOTALLY unprofessional.
Don't even get me started on the guy who tried to start a "nerf war" at work. A WAR! Excuse me, but people DIE in wars. How on earth did he think that was okay? It's like he was saying that he wanted to kill his co workers.
/s