Cat Turd isn't Right

Dear Frank: My boyfriend got me a cat turd for Christmas. It was super nice of him, but it's not the exact one I wanted. How do I ask him for the receipt so I can exchange it without making him mad?
Sincerely, Not Right in Napa

Dear Not: Even with a gift receipt, you're not putting that thing back where it came from. Just enjoy your cat turd and appreciate the thought your boyfriend put into the gift.