Most people can agree… Some of the most difficult people to buy gifts for are your parents. Here’s a comprehensive look at what NOT to buy:

“The Beginner’s Guide to Parenting” – Nothing says “Thanks for everything, Mom and Dad” like a book that insinuates they need a refresher course in parenting.

“The World’s Most Horrible Parent” mug – Sipping their morning coffee from a mug that declares their supposed “horribleness” might just make them wonder where they went wrong, or better yet, how they managed to raise such a witty and sarcastic child.

A “Do-It-Yourself Family Therapy” kit – Ah, nothing screams “joy to the world” like an at-home therapy session with the entire family. This gift, complete with questionable advice and a list of unresolved issues, will surely spice up those holiday gatherings. Just make sure to have the eggnog ready, because things might get a tad uncomfortable.

An expired gym membership – What better way to show your appreciation for your parents than by implying they need to work on their fitness? A gym membership that expired before Santa even hopped on his sleigh is the perfect way to say, “Hey, Mom and Dad, how about shedding a few pounds for the New Year?” So, grab some popcorn and watch the awkwardness unfold.

A “Parenting for Dummies” DVD box set – It’s like the book mentioned earlier but with moving pictures. Who needs years of experience when you have a DVD that can teach you everything you need to know in just a few hours? We’re sure they’ll appreciate the joke… or maybe not.