So, let's share a little problem with 1995-96 Upper Deck hockey providing the back drop. Sometimes when cards are stored for a long time in not so favourable conditions, they can brick and become near impossible to pull apart. That is like a worst case scenario for card collectors.
Sometimes, it's not enough to fully brinck, but instead there may be a bit of stickiness, or an endge where cards fuse, and then the damage may just be a sputtering of small white dots on the card, or tear on that one edge when you pull them apart.
Below are the keepers, and there were about a dozen damaged cards I didn't scan, which I will use for packaging.