I would trust the quality of Japanese chickens infinitely more than others’. They seem to take their food products pretty dang seriously, like their ridiculously perfect fruits.

As a person who has slid over a wall from the hot tub to the pool head-first, I can tell you the bottom of a 3’ (1m) pool comes up to meet your face much faster than you’d expect. I assume the fence is to encourage people not to do that.