I'm not sure why I cannot so much as think about something called "Indoor Urban Paintball" without shuddering. Maybe it's because we've been at war for so long, because I feel certain as a teenager I would have thought it quite a cool diversion*. Currently however, I don't find it in the least amusing.
*I wouldn't have done it myself, mind, but I would have enjoyed watching friends play. I'm a notoriously awful shot and would have begged off accordingly.