The only strays found in parks should be dogs. Not freaking bullets!!!! What the heck is a 'stray bullet' anyway, they move in straight lines and can only be set off by someone pulling a trigger.
I imagine some "stray bullet" injuries/deaths are caused by firing into the air causing an arc. Don't mean to "actually" you but it likely isn't always a shot fired horizontally.
I agree with you by the way. And gun control could start would rigorous training requirements (like checking backstops, education on safety) -- it wouldn't have to be "they're taking our guns!".