That's basically the goal I'm aiming for. It's also worth remembering to always give an (age appropriate) explanation with the "no". If you're using a hard no, then there is something they don't yet understand. Explaining it lets them integrate that knowledge into their future risk management.
The only downside is their confidence is high enough to terrify me! The job of containing and shaping that confidence, without damaging it gives me plenty of grey hairs.
I suspect most kids who would throw water at a cat like that would not be very good liars about it. Also, adults tend not to dump water on kids for no reason. I would definitely take the time to pick apart what happened, before going full papa bear mode.
I might be pissed, but my instinct would be to find out who I should be pissed at first, before going on the war path.