"Steve? Why is there corn all over the carpet?"
If you saw the (non-Ashton-Kutcher) biopic wherein Michael Fassbender-as-Jobs prepares for a presentation by doing said ablutions in the crapper, you probably assumed that was a bit of Hollywood hyperbole. But nope, it was simply Jobs' way of relieving stress. Combine this with his worrying aversion at wearing shoes, though, and we're guessing this habit wasn't very relaxing for Apple's janitors.
Oh, but that was but the start of his hygienically questionable "eccentricity." Early in his career, Jobs' co-workers were so disgusted at his perpetual stank that management transferred him to the night shift. It wasn't that he was afflicted by a condition that caused uncontrollable farting (though his vegan proclivities may have given rise to that issue as well), but rather that the man literally didn't bathe.
Except in the adoration of people who love waiting in lines to buy new, marginally improved products every single year.
It wasn't a passive-aggressive thing either, as Jobs is said to have truly believed that if he ate only fruits, it would somehow leave his body "flushed of mucous," thereby eliminating any need to march his grimy ass into a shower. So if you think the "fruitarian" lifestyle will make you smell like a delicious smoothie as opposed to a rank bus station hobo, people who had the misfortune of spending lengthy periods in Jobs' presence will readily confirm that you are "very, very wrong."