Not to PC...

While helping a friend get ready for her move the door bell rings. We were in the garage and figured it was the neighborhood children wanting to play with her dog. We let the dog out the garage door to go meet the children but we heard barking instead. I went outside and around the corner to the front door to discover a scared african american teenager at the front door looking to sell something door to door. After assuring him that the dog was all bark and no bite he left. I proceeded to go back to the garage while trying to control my laughter that we had just sicked the dog on a african american which is so not right. We had a good laugh as it was so not PC but we didn't know that it wasn't the neighborhood children. Am I a bad person for thinking this was funny?