If you think this is bad try working at Blizzard or my company. Beach volleyball courts, workout centers, daily chiropractor visits, games in the cafeteria at lunch time, costume parties, etc...
Oh, the ability to be professional... is stangely still alive and well. Letting your hair down once in awhile is not 'bad' it is actually 'healthy'. Sharing the fun things you do with the employees actually encourages creativity and ownership. Not sure about Blizzard but my workplace has been voted one of the best places to work multiple times in a row.

