This friend really believes in calling dibs, also known as the rule of the land in most situations. If you run to the car faster than anyone else, you get dibs on where you sit, or if you call dibs first on movie night, you get to pick the film. But this friend is calling dibs on something else entirely — the room she's choosing to sleep in during a vacation with her friends . U/yayabanana17 wrote to r/AmItheA**hole to settle an argument. As she explained, the group was planning to travel with…