I was just thinking about nothing, when I thought about what it'll be like if I were a fish.

I'll be awfully disgusted with myself. Because I eat my food, and breathe in and swim in the same water as I pee and poo. And just when I thought that it'll be okay, since I could bathe with the endless supply of water, I realise, once again, I'll be bathing in the same water. So, there's no point, really.