Me and my boys were at my house one day, and these guys cracked on about I was 'big for nothing' so I said okay lets see who got the hardest punch. So my bro held a pillow against his arm (bent upwards like how the stance but tight against his body). I threw my punch and screamed (bent my wrist). My boys were crying from laughter so I said "I need to do something about this". Went to the gym and was late so we sat and watched a guy getting it in on the pads and was mesmorised, I didn't say a word and watched and listen to those punches thunder in the gym. Never looked back.
Well, I was bullied to be honest and I dreamt day and night to have a go at my opponents. Today, of course, my motivations have changed, but essentially that is that. Even today, boxing provides a certain oasis of normalcy in an otherwise undisciplined life full of procrastination.
In all seriousness, now.... Always fancied boxing, but when I was younger the only thing available was a Karate dojo. Did that for 4/5 years until I got old enough to notice girls, and then stopped (was one off Black-belt). In the intervening years, I watched a lot of british boxing (Eubank-Benn was ALWAYS on telly, it seemed!!), and got into the obvious media (Rocky, Hajime No Ippo, etc). As I've gotten older, I realised I was getting out of shape and - when someone in work mentioned there was to be a charity "white-collarboxing" event, I decided to sign up for the training (though not the actual event - as I know these events are extremely suspect in how they operate: poor matches with regards to weight-pairings, unstructured bouts with few enforced rules, massive disparities in fighter experience, etc). Since starting, I've begun to lose weight, be more toned, and also feel more confident. All-in-all, I think it's great exercise and great fun. I know I'm too old for anything more than training/sparring/the odd charity thing, but I'm really finding the sweet science as an engaging past-time - and look to continue after the event is over.