Wow, this was featured in Christmas 2013 yet I'm the first reviewer? Well, I review everything. What a coincidence I'm going more reviews for you! Well again, I review everything. This was actually quite funny. You really don't know what's coming up.
It's just a pretty simple joke that's well set up. I guess the animation wasn't that great. It was just a short little joke. You do a lot of stuff on cancer. It's not easy to make that funny.