Mate of mine did this - declare himself bankrupt. He had his own company (not IT) and then ended up basically working for another company who took over his business.
Never paid a penny in maintenance for his daughter (who was 10 at the time, now 21). Occasionally, even now he chucks her £100 and thats it.
I remember about a year after his divorce he was renting a posh flat, had a new bird, tidy car. Still not paying.
Piss poor attitude if you ask me thats for sure.