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.
I generally don't trade cards with anything that would be visible damage. I think there may be a few white specks on a few of these as I am not perfect, but no tear at all. Besides, for some of these, as you can see, we have up to a dozen copies, so I could spare a couple not being up to snuff.
It's one of the hazards of buying card lots, there can be some damaged cards like this. Not the end of the world if the bulk is big enough and damaged cards make up a small part of it, but worth keeping in mind depending on the years for the lot covered - and in some cases, the specific sets.
What's the worst bricking/sticking you have had to deal with personally?