My FI's grandmother wants to throw me a shower. I don't know anything about showers, but from what I do know, they're gift-giving parties with silly games like the toilet-paper dress. FI and I don't have any desire for gifts (we had a hard enough time coming up with anything for our wedding registry), and I loathe silly games. Plus, everyone she invites will be FIs family or people I barely know, as all of my family and friends are OOT and not coming into town until the wedding. Can I decline her offer to throw me a shower? How can I do so and still be nice?