I did wonder if anyone else removed their toilet seat to clean it, I do, I have boys.
Can I just say that I think using limescale remover may help as limescale tends to hold the smell of wee.
Also I find the whole kneeling to wee thing very very disturbing!! Why aren't more people freaked out by this behaviour. I mean, picture it, he kneels to wee. Did he do this anywhere else, public toilets, other people's houses????