Depending on road conditions, traffic volume etc. If I'm in the slow lane and car ahead is faffing about in the middle, quite clearly not going to move then I undertake sometimes. So many cretins sit in the middle lane dawdling along with zero intention of moving into the slow lane. Its just how it is.
Does anyone else ?
Yep, we are legally allowed to pass on the inside over here in Colorado and turn right (left in your case) when traffic lights are red, however, indicating or lack thereof is a major affliction here. We could do with that new law passed in Florida and some education on how to use roundabouts correctly.