I smell a FUD outbreak.
Only return things if they
need to be returned.
Don't get in the habit of reading books and
then returning them (by the bucket-loads).
Don't play fast and loose with billing addresses, credit cards, and proxy servers trying to circumvent geographic restrictions (or at least don't cry when you get nicked).
Don't tell them "I never received it" if you did.
Comply with the above, take deep breaths, and you'll be fine.
And as abookreader said; if having access to your books in the future worries you now... then take care of business today.
