Here's what you need to do...
Buy two watches that look expensive, relatively cheap, and are from a brand that nobody has heard of.
If someone walks into your office with a complaint, follow this script...
Guy: (Complains about something)
You: Hey Guy... lemme show you something.
(Whip out both watches and lay them on your desk)
You: Take a good look at these for a second.
Guy: Excuse me (Guy will say something unimportant here, no matter what he says, stick to the script.)
You: Yeah, yeah, yeah, but here... Just pick them up and look at them for awhile.
You: One of those watches is a $100,000 handcrafted, Swiss watch, that I managed to nab at an auction. The other watch is fake.
You: Now tell me. Can you tell the difference between the two?
Guy: Well uh, no I can't.
You: Your answer just cost this company $100,000. Now if you think that you can just waltz in here with your complaints while simultaneously losing this company millions by the second you have another thing coming!
You: Now get out of my face, you disgust me.