It’s possible to remove DRM from books using software like calibre and thats not even getting into how easy it is to pirate due to the small filesize if you ever need to recover a lost book. Then you can back it up and copy onto other storage devices and the cloud which in some ways makes the digital copy more long lasting than a physical book.
You can absolutely get sick from ingesting your own waste. There’s plenty of flora and pathogens that exist and live in your gut that can cause problems if you ingest it orally.
After all we all have e coli and breakouts do still happen.