I was a supervisor at Starbucks, and I would never have tolerated that kind of attitude from my employees. You make what is asked for, if it's not up to standard, you make it again and give them a coupon for a free drink next time to make up for the time spent redoing the whole thing.
What a horrible experience, I don't think we even have DD in Canada, but it definately makes me not want to go there.
There is a time Tim Hortons gave me Caramel instead of Vanilla, and I can't have Caramel due to an allergy. That really ticked me off.
If you make iced coffee at home, make it close to double strength and fill half with ice when your done, this way you'll get a good strength and consistency. Play around with it a bit and you'll get it the way you like
