A few months ago I visited a doctor, a specialist. After a long wait, his nurse put me in an examining room. Another twenty minutes passed. What's the point of leaving a patient alone in an examing room for twenty minutes? I wasn't exactly pissed, but I was annoyed, and I did not want to be forgotten. So I took out my cell phone and called the doctor's office. I asked them at the front desk how long I had to wait.
The doctor showed up a few minutes later, and was he angry! He took my phone call as a terrible insult. I was so amazed, I didn't even try to justify myself. I just accepted his whine (I think he's a good doctor) and moved on to the business at hand. And the next time I get left in an examining room for a long time, I'll call again.
But I think this is even better: I was in aisle 13 of the supermarket, and -- remember, I'm a guy -- I just couldn't find a product that had to be there. The natural thing to do is to walk to customer service (over at aisle 3), wait on line and ask for help. Instead, I called the store, got customer service, and said "I'm in aisle 13 and I can't find Mop'n'Glow. Can you help me?" They sent a guy over, and we found the product. (Hint: If you call, they will help you first, ignoring the people on waiting line for customer service. Everybody helps the phone caller first.)