See Five, we're here 'O' (pointing at the brain)!
I didn't think it would (or should) turn into so much.
And yes, there have been many times when I found myself on the wrong end of an arm bar against a grappler and said "OK, let's try this another way (ooch)". I always say, it's easy to be dominant against someone who knows less than you. What happens when that's not the case. Best to be prepared. And I've also found myself incorporating the things I've learned on the aikido mat (with KI of course)
Check out the photo at the bottom
http://www.woodbridgeaikido.org/History.htm