Stupid shit. What do you think you are proving with this? Grow the fuck up..man the fuck up..act your age. I love biking and stunting but you're just being a total ass here. What would you have done had you ran into a child? Ran like a shit, that's what.
Security also skirts the law in chasing you, but that still doesn't give you the right to do what you're doing.
People like you are the reason other people hate chavs on bikes, because your attitude sucks. Find another way of getting your rocks off.