  I saw some urlLink kois in a pond today after lunch. Jelte & I were at Raffles Medical. We have both got the flu bug. Anyway the kois were in a pool and people had placed rocks around the inner circumference. The pool had a bowl-like appearance, with its perimeter sloping outwards. I thought, why are they making the small place smaller. Then I realised that maybe they wanted to prevent the kois from swimming all the way to the side – and falling over onto the pavement.
There, they will flop and die. I pointed that clever observation out to Jelte. He disagreed. He said that if that is so, then we will constantly be finding fish flopping about dying on beaches. The difference, I pointed out to him is, the beach is a gradual slop. Somehow if the waves wash them up, they can still roll down to the water. But here, once they flop out, they can’t flop back in. 
