The context of the following conversation is Ash pushed the boy into the pool for what he thought was a harmless practical joke.:
Ash says I was just playing and joking around and actually having a lot of fun..
The friend responds What were you doing?.
Ash responds I just pushed a boy into the pool hahaha.
The friend responds Do you know the guy? Does the guy know how to swim?.
Ash responds I don't know, It was just a harmless joke, come on!.
The friend responds You don't know what could happened, be careful with your actions..