I like my entertainment straight up. When I go to the ballet I expect I'll see the ballet. A concert is a concert. A play is a play. This simplistic approach to entertainment is most likely why I sat scratching my head in true "What the heck?" fashion for the first 15 minutes of the Blue Man Group. What was this? Was it a concert? Was it performance art? Was it comedy? Check yes to all of the above and then some, but here's what I know for sure — Blue Man Group is family friendly fun at it's …