Freakin' McDonalds
It's to be expected
As for the weeble wobble, I'd toss a couple of God Bless you's and maybe Have a Blessed Day at him. After that I'd be laughing hysterically at him hoping everyone else would be too. It would have been nice to see him pelted by scads of people throwing chicken nuggets at him as he screams in hunger, umm.....anger.
Then I'd tell the 20-something year old manager it was probably his fault for not properly training the people he has working his front line.
Freakin' McDevils