I agree, you handled this well, especially giving the police the kid's description. This incident really upsets me. There are plenty of people who live their life like this kid bikes: literally flying in the face of social convention with little or no respect for the rules, with no apparent circumspection, little or no empathy towards others and no regard for the consequences of their actions or how they may affect others. I unfortunately agree that this kid's luck will eventually run out ending in injury or death.