Re: "coffee please"
"I'll have a tea."
It'll probably be served tasting faintly of coffee.
I didn't know Starbucks were masters of irony ... their coffee tastes nothing like coffee, so why would their tea?
[Last time I found myself unavoidably breakfasting in a Starbucks I did indeed opt for tea, and got handed a rather hipsterish upmarket nylon teabag stuffed with large tea leaves, and a cup of almost hot enough water. A surprisingly successful outcome, considering.]