My high functinoning Autism Spectrum Disorders (ASD) son until two years ago would urinate in pop bottles that he'd finished with because he didn't want to take time away from what he was doing. Now he has suddenly become very clean about his room, but back then...well, let's just say he'd say, "It's lemonade! Really!"
And it wasn't.
We still have to force him to shower. He doesn't care if he smells and doesn't like the smell or feel of deoderant. Sometimes he will put on a dirty shirt that stinks and spray deoderant in the arm pit of his dirty shirt (not on his skin). These are the little reasons I feel he will need assisted living (an apartment where somebody checks in on him either once a day or a few times a week). He KNOWS what is socially approproate, but he doesn't CARE.
I don't mind living with him. He's the best kid on earth and I feel he has a great future, even if he's quirky or needs a little help. He is the light of my life and I embrace his "differences." We adopted him at age two and we knew he was going to be a bit, er, um...different 
