I’ll try to be prepared. So far, my immediate reaction has been extremely boring. I think the best I managed was a “Really?” to the lady at SmashBurger
Only a few times in my entire life have I ever seen a cash register ring up $6.66, and each time,the cashier and I have treated it as a joke, and promptly forgotten about it.
Just the same as we’d make a Columbus joke if the register showed “$14.92” or a Christmas joke if it said “$12.25”
It seems to me that these same people would be spooked by getting number 999 if they looked at it upside down.
A neighboring community’s telephone exchange starts with 666. There are a bunch of churches that have that as the start of their phone number and nobody seems to have a problem with it. But then, I live in one of the grown up states.
I’m sure its confirmation bias, but it seems I see $4.20 a helluva lot.
I personally hold no superstitions about the number, but when I’m working a cash register I always read it as “six dollars and sixty-six cents” on the off-chance that my customer is superstitious and would be made uncomfortable by reading the number in the more intuitive way.
Part of the security code on one of me credit cards is 666. There are a few stores I frequent that ask to see the code when I’m checking out. On several occasions, I’ve watched the cashier’s demeanor change from friendly to withdrawn, almost hostile upon seeing the code. As if I’m the devil incarnate for having that card.
Friends laid a wedding related bill with check # 666. Still married, have a kid.
If you want the problem to arise up here, you’d better be paying by credit/debit, not cash (and I suspect some places round credit/debit charges to keep things simple even if they don’t have to). Given that we have done away with pennies, $6.66 gets rounded down to $6.65 ($6.68 gets rounded up to $6. 70).
Just remembered - Westboro Baptist Church (of Fred Phelps and God Hates Fags fame) has a zip code of 66604. Seems suitable! They have actually commented on that at least once, but I am far too lazy to go to the effort of finding that particular discussion. 
I bet the Thorns are proud of little Damien!
I have left $6.66 as a restaurant tip.
Years ago there was a bizarre murder spree (later the subject of a true crime book), preceded by the perpetrator getting all out of shape at a store checkout over having to pay $6.66 for something.
Humans are the craziest people.
See post #23
There’s a car service here in NYC that I always hear ads for with a pretty famous jingle: “666-66sixty6, the number 6.” Anyone in the New York area will be very familiar with this tune.
I can’t recall ever having been charged precisely $6.66 for anything, ever, although it’s possible I just wouldn’t have noticed. But really, does $6.66 come up as a charge all that often?
My brother’s phone number is 696-9666. He gets phone calls all the time from people wanting to BUY his number from him. :rolleyes:
Oops! 
Hey, at least the great minimum wage masses are educated enough to know about this superstition. For note, in the 1980s the phone number prefix for USF and UCSF universities in San Francisco was 666. USF is a Jesuit institution. UCSF is a hospital and saying it sounds like sick-sick-sick.
Fred Phelps is dead? Maybe there is a god after all.
I don’t think I ever heard of 666phobia, but I have spent very little time in the south. I did once have a Dell Computer telephone help guy hang up on me when I said, “What the hell am I supposed to do now?”
If we were in the same room now, I would have to apologize because I am laughing really hard. 