This is not a bad thing but more of a funny thing... One girl I was with (from soi sea dragon) wanted to eat before going to the room and yup out to a "street resto" we went, I didn't have anything my self since I was too chicken to risk having stomach hassel later on
so she had somekind of soup and some other dish I can't even discribe but she told me it was very spicy and I believe her. Anyway, as soon as we got to the room she goes to the bathroom and I heard some queasy/vomiting sounds a few seconds later I heard this "thunder sounds" and I can assure you all that I've never heard anybody fart so loud
I had a good laugh before she came out which took her just a couple of minutes and after that everything was fine and we could get to the action