Should I be scared in this situation? (I know I should only fear God.)?

Wow long but interesting story. I don't believe in God but I've been in situations like this when a bigger dude wanted to beat me up. The best way to approach this is to directly approach him with your guard down and explain to him how sorry you are. When it comes to kids people get crazy. I'd probably wanna sock you too if you grabbed my son lol.