Can you return your game for a full refund? Say you buy one of Blizzard's games in the stores, then actually bother to read the ToS and decide "no, I don't want that".

BTW if you're one of the 99.9% of people who never read Terms of Service, you may be interested in the WIP-Project tosdr.org. It's a website that makes summaries of the Terms of Service of several online services.