When I lived in my old town, there was an elderly woman who sometimes came to a meetup I attended (she has since died) about whom I wondered if she had this or some similar disorder. She was clean, but had this very peculiar and unforgettable odor that was like a mix of urine, stale cooking odors, and who knows what else. Nice woman, too; too bad she smelled so bad.
I told my mother about her, and she said that my grandmother had once had a friend who was like that.
This woman once came to my house, and yes, I did shampoo the chair after she left. Interestingly, my cat didn’t react any differently to her than he did to any other visitor. On another occasion, I was at the library, and detected that unmistakable odor. Yep, that was her.
I had a friend who specialized in farting in lifts.
I did laugh at this line " In February, INSIDER reported that a Transavia flight from Dubai to Amsterdam made an emergency landing after a man allegedly spent most of the flight incessantly farting. "
That’s tragic. It answers Shoeless’ question at any rate. They didn’t notice the smell at boarding because it got worse on the flight as his flesh was dying. Poor guy.