I thought I could do chinups at one time in my life. Turns out my form and technique were terribly wrong. First of all I didn't start with a deadhang. Sadly, I discovered that at a deadhang start, I could hardly do a single chinup.
Over a period of time, I improved to a single measly chinup. Which was actually an achievement seeing that I failed to do chinups before. But then my focus went elsewhere and I spent my time doing overhead presses, bodyweight rows (using the TRX) and pushups. That's all I did.
And today out of curiosity I tried doing chinups. Bare in mind it's been a couple of months since I last did them. And surprisingly I managed to do 3 of 'em. Again, I am the first to admit the number is nothing to shout about. But I'm just curious how I managed to improve on the numbers (by 200%... hahaha...) without training for them directly.
Oh just in case you're curious. My weight is a healthy 48kilos. I'm happy with it, and I think this is my ideal weight.