He wouldn't do it

I bought Jace a shirt today that says "Will trade sister for video game." I thought he would think it was a funny shirt. Which he did but said he wouldn't do it. When I showed him the shirt he looked at it and then to me and said, "I'm not doing that." I said," it's just a joke." He said, "she doesn't cry like that." I was like, "hey, it's a joke. Wear it for fun." He was like, "oh, oh now I see". He got it. I guess my plan of trading Liberty for a video game won't work after all. Dangit!