The apartment where I live has NO TOILET within it nor plumbing to easily install one and the building itself is not provided with any communal facilities either which leaves me without access to a lavatory when I am at home. Thus every time I get desperate for the loo there is nowhere I can go to relieve myself and have little option but to seek relief in my own apartment, go outside somewhere or piss my pants! As a result the carpet, sink/bath, newspaper, bottles, plastic containers, my clothes, grass/bushes or communal areas of the building are all frequently used as an improvised toilet when I cannot hold it any longer.
This is also the reason why when I am out in public or at someone else's house and I badly need a wee, I have to either find somewhere discreet to go or resort to wetting myself as I have never been toilet trained thus don't know how to and afraid to use a lavatory/men's room.
In addition, I go commando and do NOT wear any kind of underwear, this is so that if I do have to pee myself then only my pants get soaked. Thus, my penis has always been free to bounce around in my pants, pull them down and my penis is revealed!
I also like to be naked whenever possible- less clothes the better, I feel too restrained in clothing! Nearly always naked at home (and always go to bed naked). Not shy of nudity.