If I breath(for years), the fumes of ones farts will it affect my health in the long run?

I don't know but this question is FUNNY. I had a good laugh. :)

If a guys fart stinks that means he has waste in his system and he needs to visit to toilet more often. He would more likely be suffering than you since his colon is not being cleaned often. I only experience smelly farts when i eat beans and if i have not had a good bowel movement for the day.You should tell him that it smells and he should excuse himself to the bathroom.

I read on the Darwin Awards site that a man died in his sleep coz he had awful gas and his bedroom was not well ventilated. He died from methane poisoning or something.

I wouldn't worry about dying unless you're in a confined area but maybe you should talk to the person about changing their diet.

I honestly don't think I could put up with that for years. You must have a strong stomach.

~~I lived with and around some of the gassest people around from the time i was born and i am fine.

It leads to "sh!tty lung" (pulmonarius fecale) in the long run.

no they are very good for clearing the sinuses