Yahooo, water on at 50'!! What a wake-up that must have been! I guess that's why we always pulled back to 14500 as soon as we cleared the trees instead of flipping the switches--you always can get it back if you get scared, and you won't ever turn it on by mistake.
I always wondered what would happed if you turned them on after 15000 was set, now I know!
I wouldn't have been surprised if exploding cans might have rung the bell after somebody did something like that.