Indeed. I was once on a long-haul flight next to a bearded Australian of dubious hygiene (there's always one, isn't there?) who was wearing a singlet, shorts and flip-flops, which he took off. So basically, there I was, all the way to Singapore next to some hairy-arsed stranger who's virtually naked. Completely unacceptable imo.
I once boarded a flight from Jo'burg and the woman sat behind me gleefully announced to the person sitting next to her that she had been working with skunks for the past month and hadn't showered in a week. Lovely.. at least she kept her ****ing socks on.
On a recent flight the bloke next to me kept openly farting, even lifting his leg to signal each eruption. He ordered the vegetarian meal.....
It wasn't as bad as you would think. Obviously she stank but that was largely from not showering for a week.
I can cope with the smells more than the partial nudity.
My main pet hate is the **** who wanders on with three big suitcases. How the **** do they get on the plane with them?