How can Miron recognize him so easily after knowing him for just one day, while his own son who've known him for what??? 7 or 8 years, can't distinguish his own father in a costume?? Especially with Arnold's heavy accent.
Makes no sense.
Howard's wife didn't recognize him either. So stupid.
"It's as much fun to scare as to be scared" -- Vincent Price
Liz was probably too far away at first and then afterwards (after Jamie nearly fell from the tree), she was probably just relieved that Jamie was okay. And Jamie was probably under the "Whoa. My childhood hero knows who I am" spell. Think about it. If you were at a parade like that and you didn't expect to see your father there, and your childhood idol was there and somehow knew your name, would your first thought be "Oh it must be my dad" or "Holy crap! He/she knows who I am!"?
I don't think more electricity is what this guy really needs. Just throwin' it out there.