According to Adrien Chen, "Working at the Apple Store: Tales from the Inside", Gawker 6/16/2011:
Apple employees are banned from saying "unfortunately" when delivering bad news to a customer, urged instead to replace it with the more positive "as it turns out." And management apparently takes the ban seriously: One former Apple employee tells us that his coworker was put under a 90-day probationary period because he said "unfortunately" too much at the Genius Bar.
As it turns out, "unfortunately" is just one of a number of "stop words" that are not supposed to pass an Apple Store employee's lips. One Apple Store employee, who was fired in 2009 after two years, writes:
There was a whole class we took about things not to say, and what to say instead. One of my favorites was to resist the urge to say "That's stupid" or "That wasn't smart" and replace it with "That's not recommended" – For example, you say "I took my iPod swimming and now it don't work" I say "Ah, that's not recommended" when I mean "That was really stupid".
I believe that I'll try this approach in the comments section.