User blog comment:Sacorguy79/Ricky (Part 16)/@comment-5075791-20130920140540/@comment-1986314-20130920142950

To elaborate on that:

A character's visit to the past could cause improper effect as to what has already occurred. Thus, if life-changing decisions or actions are made (in this case, the conversation the past and future Mobians had), just about anything could happen (the humor part). In some odd way, young Sonic eating a chili-dog managed to reverse the effect, as it was a life-changing action made in the past already.