Well, yeah, when a light flashes on and I see it out of the corner of my eye, I'm distracted. Generally, I'm the one farting, so that doesn't bother me...I'm pretty sure everyone else enjoys the aroma as well.

Not bothered by popcorn, as that's just part of the movie experience, however if they had the technology to make people mute during movies I might go for that too.
I'm probably a jerk, but I don't have much sympathy for the guy who can't live without his work for an hour and a half. If his work or whatever else he has going is that important he probably shouldn't be in the movie anyhow.