No you don't. And I often wish that companies would stop trying to treat the employees as some kind of big "family." Company picnics, bowling, golf, Christmas parties, etc. that everyone is urged if not forced to go to (outside of work hours of course). About 10 years ago I just stopped going to these things. I already spend 40 - 50 hours a week with all these people, I don't need an evening or weekend day stolen from my time with my REAL family and friends to spend more time with co-workers.