Throw water balloons.
Grenades.....darn I should have thought of that!
Get a fire truck hose, break a nearby fire hydrant, then blast them *evil laugh*
Tell them that Santa isn't real and that they are adopted.
Get a water gun with dispersion and go outside screaming :D
You want to play?
Let's see em dance soaked hahaha!!!
run home and turn on the hose muhahaha
Turn around, Shout and if they dare. I will actully break the water guns.
This has happend in real life and that was my last reaction, Unlees im in swimming trunks or its part of something else like a birthday party or such.
In norway we got a session for such. Poor Kids.
Turn on the water hose, on low of course, don't want too hurt them!