Afer I got my punching bag, I really had a lot more respect for boxers. :)
From my understanding, they do not go out, but make breakfast in a conference room. Basic stuff is somehow organized.. and everybody brings small stuff like special marmalade once in a while to spice things up. I guess that they are about 20-30 people. They do talk about business all the time. But as it is not enforced anyhow, it does not feel like work.
They seem to have a very nice working culture. To quote from his (german only blog): 'Meetings are very important. Showing up late is strictly forbidden and would result in drastic punishment. Meetings are so important, that we would never ever let the times overlap with our foosball table tournaments.'