I've worked with the same small business which looks after our networks for the last six years. The owner and I do know each other very well now and have a very easy and friendly relationship.
Today I had to confirm with him an order for MS Forefront Security. I couldn't remember the name and I heard myself saying "What's it called? Full Frontal Security?".
I could hear him choking. He is a very, very, umm, pleasant young man. Fortunately living hundreds of miles away.