a smelly situation

i was riding the bus to meet a friend last night and i'm pretty sure the girl next to me farted. she sort of squirmed weird for a minute and then everything smelled really bad for a few minutes. and not the same really bad smell you get when there's someone near you on the bus that hasn't showered in over a week and you feel you have to get off the bus 10 stops early just to get a breath. this was pungent and gross and sitting next to me...euwww...