I hate passing riders who have an Ipod. They can't hear me coming and weave into my path. If they don't do that then they can't hear my greeting.

If you're going to wear an ipod, pay attention to traffic. Please don't bring them to a group ride.

I've tried riding with music and hated it. It cut back significantly on my ability to hear traffic, to an extent that I felt was dangerous. I'm one of those people who can hear traffic behind me. That's saved me from getting hit a number of times.