What does my dream even mean?

My Dream is that I'm in Wal-Mart with Joe and Peter from the T.V Show Family Guy. Joe says to Peter "Hey Peter, your pretty dumb" the Peter Says " Yeah". Then i start to giggle since he said he was dumb. Then Peter stood up and started to get angry and say " You Callin' me dumb?" then im like " No". Then Peter Starts chasing me around. It was really scary. Then I try to trip him with a shopping cart but then it somehow it turned into a rocket wheelchair. ( Like Felix's in Kim Possible ) And the wheelchair floats away. Then Dream goes on and on until I woke up because of my sisters foot on my face. D: