Beyond bikes and being bikesexuals, do any of you do Jujitsu or Kendo? I am starting to realize through the work I am doing that I am a naturally aggressive guy who enjoys fighting. I need to find something to concentrate that into, to keep me disciplined and on track. Lately I have been looking hard at both of these. I like the practical application of Jujitsu, good for out and about in the world. However, I like the spiritual/concentration side of Kendo. Any words of advice?