It is my personal experience and I could be wrong and erroneously extending that experience to a whole group that doesn't deserve it, but as I see it women can be far nastier and meaner than men.
They are capable of holding a grudge for far, far longer, they can be downright vile towards people, whereas with a man it's usually short bursts of anger and then you go to the pub for a pint and are friends again, for a woman such animosity can last a lifetime.
Hygiene smygene.
People put too much stock these days in nonsense such as antiseptic soaps.
When you take tobacco and use a paper to roll a new cigarette, the tobacco will be subject to quite acrid smoke and quite intense heat. I'd say it's enough to sterilise whatever might happen to be in there, and on the other hand if your immune system can't even handle a sidewalk you're best off giving up altogether and should move into a plastic bubble.
One of my greatest pet peeves of the modern age, this completely unnecessary obsession with hospital quality cleanliness.