So let's say that you go to a store and are looking for blind packed toys. In the store, staff members have already identified and pulled out the rare figures so they can buy them later. Another staff member sees this and notices that you can't find the blind packed figures you want and offers to let you buy some of the figures pulled by the toy collecting staff members.
Would you be in the right if you buy these figures? Does the fact that you are a customer mean that you should get priority over staff for merchandise? Does the fact that the staff member didn't buy the toys right after they identified them play into this in any way? Are you taking figures from another collector who just happens to work in the store?
Just some stuff to consider. In an unrelated note, I finally got a Rocket Kid minifigure.