There are a number of collectors that have damaged coins. It's amazing what can be done to a coin if you put your mind to it.
If you include PMD cents, that's going to be thousands upon thousands of pages worth. Here's a heads up on other types of damage you may run across and wonder if it happened at the mint.
For those who are bored, I mean really, really bored because of Covid-19, they could start cataloguing PMD's.
Not a bad idea. It serves two purposes. It provides you woth a reference knowledge base, and it keeps anyone that finds it after you spend it from coming back again and asking about their great new error find.