Is it normal that I have an urge to shit in my garden?

I've been having to take dumps in our backyard for months now, 'cos of my sisters saying how my excrement smells like shit, they say it stinks the house out so they won't let me use the toilet indoors any more, I has to go poop in the backyard instead and I'm always worried that Mr and Mrs Spinks nextdoor will see me squatting there and call the cops. Okay so the bathroom indoors is a tiny room with no window or extractor fan, but if my sisters can go caca in there then I don't see why I can't too. I think they just pick on me 'cos I'm a guy and my poop don't smell of flowers like theirs does.

Believe me Mr Bumblecreek, you don't want to dump in your backyard, it's uncomfortable and there's insects hovering round you all the time or else it's raining or whatever, it's a real bum trip. Just y'all use the toilet indoors and forget all about defecating in the yard, y'hear?