If someone were to squirt me with water, my reaction might be to chase that person and tackle them, squirt them back, maybe even get them back with an equally harmless practical joke later when they weren't expecting it.
It would not be to THROW SCISSORS at the guy.
Click here for video (warning, it may be a little slow to load, but it's worth it)
I think this is hilarious. What a dumb ass.
Possibly the best part to me is the "squirt guy's" reaction.