About 5 years ago. I have probably been in half a dozen scraps as an adult. But I used to box in my late teens and early twenties and did quite a bit of sparring. Mind you, I ended up with a criminal record but I feel that is a better option than letting people walk all over you. I have lived in some rough areas and haven't always had a choice. I am not as old as you, I am 42, but I am always prepared to throw down if push comes to shove. I was just raised working class and spent my early years working blue collar, if you didn't learn to fight, you got pushed around. Learning to box was the best thing I ever did, I think learning some type of fighting skill is essential for a man, I always notice a different inner confidence with men who have learned the basics of fighting. Learning to fight changes a man I believe and it is like riding a bike, once you learn you never forget.