Hello, my 18 month old boy reaches into his nappy (or any nappy) and wees everywhere. I've tried sitting him on a potty but he never sits on anything and just throws the potty about. I can sometimes catch the wee with the potty if near. He's holding his penis and not weeing aswell so difficult to tell what's going on and he doesn't really have the words to say if he wants a wee as yet. I need help and strategies please. Any advice welcome. Thanks.