[sneak]

Is it mandatory? If you assume a staff member has x hours available each week for work, is this coming out of x (at the expense of company business) or is it coming out of 168-x (and thus reducing the staff member's time for sleep, shower, cooking, family, et c)?

[mawise]

I do them as part of work hours, and while not mandatory I do strongly encourage everyone to participate. I think the increased team cohesion is well worth 2 hours a month of "lost" productivity.

[novok]

In my experience these things are usually scheduled during working hours as a meeting, and optional.