I saw today a video from YouTube of Pluto getting into a fight with a guest. The video was on AOL's welcome page, which means it probably happened a while ago, so it may have already been discussed somewhere, though I couldn't find any previous discussion. If you search "Disney Dog Fight" you will find it on YouTube. The video was posted this summer. To me, it looks like the kid and Pluto were just playing, but others say the character was upset with the kid ... Pluto does seem determine to catch him.