Elsewhere on the internets I've been reading about what sort of music people listen to in the lab.
Back in Cambridge we used to have about 8 solid days' worth of music in iTunes, as well as access to everyone else's shared music and a (rather crappy, admittedly) radio. We had a lot to choose from, and the only fights occurred when a certain grad student got in early and played nothing but Coldplay and The Whitlams. I still shudder when I hear certain intro riffs. Oh, and when Trevor brought in jazz CDs. Ugh.
Here, music is banned from the main lab area and the offices. I have no problem with that; it does solve all sorts of arguments, even if sometimes you feel the need for Paint it Black when the RT-PCR fails yet again. We have a (clockwork!) radio in the gel room, which provides background hum (but the state of Sydney's radio stations is abysmal, even if some of the adverts crack me up).
This does mean that people tend to wear iPods a lot. I know that some consider this to be antisocial and insular, but I've never really been bothered by this. Having received an iPod for Christmas, I've been able to appreciate the privacy that it gives you, and I wonder if there is a generally accepted etiquette for wearing them.
Let me explain. It's probably obvious that a cove sitting in front of a culture hood is wearing an iPod because it's better than the droning of the fans and putputputput of the suction. This means it is all right to talk to him, although don't expect him to take an earbud out to listen to you (because his hands are aseptic).
I suspect that if someone is working at a bench in the wet lab then you have to look at how many earbuds are being worn. One means "Yup, I'm listening". Two probably means "Do not disturb: I've already made a mistake setting up this PCR and if you talk I shall ignore you. If you persist, I shall stab you with my Gilson". Whether the hands are gloved or not might have some bearing on the situation.
Of course, if someone is bopping along and singing "She never drinks the water and makes you order French Champagne" they're fair game and you are allowed, indeed obliged, to interrupt before it's too late.
In an office, someone with both earbuds in is also probably trying to concentrate and does not want to be disturbed, unless it is really urgent. Try sending him an email instead. Either that or he's trying to drown out the power drill that's been going outside the window all bloody morning.

Comments
I say bother whoever you want- if its a problem, they'll let you know. Also, just because a person is not wearing an ipod, doesn't mean they actually want to talk to you. So I think the reverse idea, of a person wearing an ipod and not wanting to talk is not set in etiquette stone.
Posted by: beta gal | February 21, 2008 01:57 PM
I find the ipod distrubing. Not only because I am a little frightned for people stepping up behind me but mainly because I like to be able to just exchange quick words in lab. Nothing long and nothing too complicated but when I am in the middle of a thought/lab thing and feel the urge to ask my fellow post docs something - I don't want to bother them if they are wearing an ipod (walking up to them ,they pulling out an earpiece etc) or take out my own ear pieces etc. so the outcome is that I stay quiet and not talk to them.
Ah well, I guess I am use to people listening to my every whim. Might as well be only ipod people around me :) probably more efficient?
Posted by: chall | February 23, 2008 05:39 AM
The one singing "The Lady is a Tramp"? That's me. But I was putting the dishes away,so it's OK. Frankie is too distracting for PCR. Queen is good for many procedures, but DO NOT under any circumstances listen to Bohemian Rhapsody.
Our lab equipment is pretty loud, so most of us wear Ipods most of the time. There is a general understanding that is allowed to interrupt each other (unless working with radiation).
Posted by: Maxwell's Demoness | March 7, 2008 01:41 PM