It dawned on me recently on what the strangers were mumbling.
It's not gibberish.
They say "candy", as if they were trying to lure you into their lair.
They say "beep-beep", as if they were honking for you to get you into the car.
Maybe this is simply a coincidence-- I haven't checked what else they say to see if it is simply harmless ramblings.
Please post your thoughts on this matter. If you have any other evidence, please post. I do hope I'm wrong about them...
I always thought they said "Kane" which is japanese for money.