Yes you had a complaint, but look at your actions.
You stole keys. You threw them at kids. You made demands.
I think you should be careful YOU don't fall foul of the law mate. It could have also turned out much worse for you, had you tried to grab him. I'm not saying I detest fly-tipping but you flew off the handle.
Working really hard to do what he wants, should not be made fun of or teased for doing what he wants to do