You should also do "undefined vacation" - the company that I work has, as far as I can tell, no vacation policy. People do take vacation, but it has never been mentioned as a coherent thing.

Another good one would be alcohol and alcohol related events... I really see no reason for those to be in the workplace, since they're not work. I am male but I hear so many stories from (non-engineer) female friends about creepers in bars, so I worry about that sort of thing moving into the workplace.