Soaking your friend in a barrage of water used to mean grabbing the garden hose. Or if your family’s wealth exceeded the normal means, a very well endowed supersoaker. At least that was what the norm was 15 years ago.
Now, if you’re lucky enough, you’ve got yourself an RPWG, otherwise known as a Rocket Propelled Water Grenade. Actually, that’s not quite accurate. It’s more like a water bottle that is propelled by a pressurized air tank, but you get the idea nonetheless. If you look closely at the above photo, a bike pump is laying on the ground behind the assailant, which no doubt powers this military inspired water weapon. Unfortunately, we can’t glean much more info than that as the page is Japanese, and Google’s translator doesn’t seem to be agreeing with our commands.