This strip was based (mostly) on a recent experience. I was in a pizza shop with my son and there was a kid there with his dad. As we're figuring our what we wanted the kid walks right up to me and asks, "Are you Japanese American or Chinese American?" I was stunned. Not offended or anything, just completely caught by surprise. His dad was mortified. I was thrilled that the kid tacked on the "American" part. Then he said something that totally wasn't Japanese and told me it meant something like "Good morning." I politely thanked him and said "Good Morning" back is English so as not to make him feel bad.
And of course I got a kick out of the fact that I was in a pizza joint owned by a Greek guy that was right next door to a Japanese restaurant when this happened.