I personally can't imagine just dropping a pack to "hold" a spot. We have split up however to search for sites and kept in contact via radio.

Once on North Bay even with my rainfly up I had a group of 3 canoes parked outside my site for a full 5 minutes mumbling amongst themselves. I'm not exactly sure what was discussed but it sure seemed like a war council. I know it was a prime site and I was (at the time) alone. Obviously they didn't see my black canoe or my green rainfly until they were almost on top of me. The stares I was getting made me feel a bit awkward but since I had already set the fly up I wasn't going anywhere.