I like the randomness and the taking things too far most of the time.
I think my favourite moment was when Chris had to pick a criminal from a lineup, behind one way glass, and he said something like "Now you're sure they can't see me right?" and then his dad comes into the lineup room, and says to the criminals, "Hi I wonder if you guys can help me? I'm looking for Chris Griffin. He's here to finger the guy who did that robbery or somthing - thats CHRIS GRIFFIN. Oh here - I have a photo of him! Ahhhh go ahead you can keep that one, I was going to throw it away anyway cos Chris ruined it by writing his name, address and a list of his 10 deepest fears on the back of it...."