Summer FPS - Lazer Tag and Super Soaker
hapycamper writes "If you want to play your very own 'real life' version of a first-person shooter, two choices include a water fight using Super Soakers or the more technical Lazer Tag brand. GamerDad Unplugged has written up an overview of both systems. In testing, the high end Super Soakers don't seem to be worth the cost unless water capacity is your main requirement. Meanwhile, home Lazer Tag equipment performs well, but can be problematic in indoor settings."
Don't forget about Airsoft. While too violent for children, it's perfect for people who think paintball is too messy or want something more realistic. A basic pistol can be had for $100 and will preform nicely at less than 20 meters. Get the biodegradable pellets for outdoor fun; indoor cleanup can still be a pain.
Oh, and be careful where you play. Breaking out a realistic-looking pistol around the office can really break some of your more "fragile" coworkers.
I'd rather you do it wrong, than for me to have to do it at all.