It think I'm gonna to shake a water bottle at a child.
Why would you shake a water bottle at a child?
The child is annoying me and I want him to go away.
Why not find the child's parents and let them know? Or just calmly explain to the child they're bothering you and to please go away?
You're a fucking loser, you don't know shit about life.
I do know you shouldn't threaten a child just because you're annoyed.