In the episode where they have the picnic a whole bunch of the families. The one that they are going to have the wheelbarrow race, but it is a parent and child one. The bumpers needed in the race get stolen, and Doug and Patti try to figure out who stole them. They hear Roger talking to his mom who said, "Sorry Roger, I have been on my feet all week long at the salon. I can't do the race with you." Then Patti says to Doug, "His dad lives in Boaltsburg. Then, a little later, Patti and Doug think Roger stole them. So, you know how in cartoons the go back in the past and hear people say things, well Doug and Patti hear Roger's mom say, "Sorry Roger, I have been on my feet all week long. Maybe next year your dad will come down from Boaltsburg to do the race with you." That is not what she said before. On the show, it is very very noticable.