After reading thru this thread I figured I'd check out the actual laws on shooting (thinking along the lines of pellet gun in the back yard). Spent some time looking up snohomish county regs on shooting BB guns/pellet guns. Came across some good but a bit confusing info. Basically, not allowed to discharge a fire arm (BB gun and pellet gun included) in any 'no shooting zones' (which is most of Snohomish County) unless your doing so to protect personal property or your life. Got me thinking, does a little bunny rabbit chowing down on my garden count as a threat to my personal property?? Hmmmmm....
Also, fun fact, it looks like a sling shot is classified in the same group as a fire arm....that was new to me. Never heard of someone illegally discharging a wrist rocket.