Except it's different here. An unclaimed mob, is just that unclaimed. You standing there waiting gives you no rights to that mob. If someone else comes in and starts fighting, that's your loss.
Right... just like at the grocery store, if there's a spot right in front of you, someone could step in and fill it. Your loss.

It's still a d*** move.

I'm not arguing that people don't have rights to unclaimed mobs. I'm just saying that we're arguing about a problem we're creating for ourselves by not being more considerate toward others.