Amazon Kindle SNAFU
This is why I don’t like DRM or any other scheme which allows someone else to grant/remove access to content which I should have access to - if I buy a (dead-tree) book, I should have access to it until I get rid of it (trash it, donate it, give it to a friend, etc., etc.).
The link talks about books, but the same ideas apply to DRMd music, movies, and whatever other content.