Proper track side photography etiquette

[Miguel]

If this has been discussed before, forgive me and please link to the appropriate thread.

Here's the thing: I'm kinda new at this racing photography thing, have been at it for about a year now. When I'm at the track I try to make as much use of the photo holes (what is the correct name for those holes in the fences anyway?) as possible, but also realize that I'm not the only one. Instead of spending my time at one hole for an hour, I take a few shots, get the cars and compositions that I want, and after one or two laps, or a minute or 5, leave to give others the same opportunity. Often, when possible, I try to make room for someone else to shoot at the same hole. I see many people do the same and it seems like the proper thing to do.

Seems like a normal thing to do, right? Well, I often encounter photographers who are spending lap after lap after lap after lap after... staking out at great spots. (not to mention people setting up camp right in front of those holes without a photo camera nearby or using them as spectator viewing areas)

So my question really is: what is proper etiquette when photographing track side? Not just with regards to colleague photographers, but also entering team garages etc.