IPhone 3gs will not turn on or charge?

My iPhone 3gs, will basically not charge or turn on, I was on it 5 mins ago, and then put it in my pocket, i took it out 5 mins later, and it was steaming hot and it wouldn't turn on. I've tried every single method that I've found through google yet it still doesn't work. I've also tried plugging it in to my computer, holding the power and home button down for over 4 mins. But no respons.before it switched off, my battery was at 61%. (If this helps, I got the iPhone 3gs 27 days ago.) not a month

What you're going to need to do is remove the phone from your pocket immediately place it on the nearest hard surface, grab a blunt metal object, smash phone until it is in conveniently smaller pieces, sweep pieces into a dust pan, walk to nearest toilet, empty dust pan into toilet and flush. You have successfully gotten rid of the problem.