You have to be blind and dumb to get a NM drop "stolen" from you.
When Quartermaster is set, a green dot appears by the person's name. If you don't understand that, you shouldn't be camping with someone you don't know. Simple as that. No GM calls are necessary, because it's your own damn fault. No, I don't feel sorry for you, because it's the people that fall for this stuff that make people like Belgarath able to keep playing.
If you need help on a NM camp, ask your LS. If they want to sell and split in order to come, then that's what you may need to do. If your LS doesn't want to help, look at your friend list. If no one on there wants to help, camp it solo. Leaping Lizzy isn't exactly the hardest NM to camp, and neither is Valkurm Emperor.
Also, I have a bone to pick with the people that complain about prices on items like Leaping boots and emperor's hairpin, then when they get the drop they sell them for the exact same price. Do people like that have a brain in their skull? I really have to wonder as I watch leaping boot and hairpin prices soar to over 1 million when I bought them originally for less than 300k. If you people want to lower the prices on items, start being proactive. Sell for less and start lowering the price on gilseller items.