When dining at a restaurant with table service, attempt to avoid sitting in the area served by the guy with the neck beard.
As anyone who has ever set foot in a comic book shop knows, the amino acids that trigger the trait of "good customer service" and those that give the "ability to grow a good neck beard" bind at the same location on the human genome and are mutually exclusive.
Worst. Service. Evar.
(Related Pet Peeve: If I'm hauling greenbacks out of my pocket as you approach the table to drop the check, and then you meander off leaving me to wave money futilely at your retreating back, don't mumble "I'll take that whenever you're ready," when what you really mean is "I'll take that whenever I'm ready.")