I guess you laugh easily at mundane things. "Please, one at a time" must be a milestone in dry humor -- I'm sure it'd work as a punchline in the right context, but it lacks the needed buildup here, IMO.
My view is that the joke hinges entirely on the fact that DoodooHead's name is used. That's because it provides the layers of meaning that are at the heart of many jokes. It has meaning both literally (DoodooHead the actual person) and figuratively (the next in the line of "DoodooHeads" -- aka dummies). He could have used another individual's name, but DoodooHead's name has the required context resonance for a little smile.
I don't really understand why you are so picky about all this. You seem to be way too emotionally involved, spending all your time writing things like this. How about taking a break? Why not take a nice long walk in the park, and not think about Amiga or BBRV at all for a while?