To be more specific: Don't try serving the billionaire head of Facebook Mark Zuckerberg and his new wife Priscilla Chan, who failed to leave a tip after dining at Nona Betta, a restaurant in Rome.
Restaurant staff did not report if they counted the silverware after Zuckerberg and Chan left, but they did report there was no tip for the service, which is standard practice and expected when serving Americans in Italy, USA Today reported.
When in Rome do what the Romans do? It is not expected that Italians leave a tip, as waiters and waitresses in Italy are paid a full wage. But Americans are expected to tip and usually do, the newspaper reported.
Instead, go with anonymous, a couple in Houston who gave a waiter $5,000 after he happened to have served them for eight years.
The waiter, Greg Rubar, a 16-year employee of the D'Amicos Italian Cafe in Houston, had mentioned that his car had been ruined by high water, KTRK-TV in Houston reported.
Unexpectedly, the couple walked in and handed Rubar an envelope and instructed him to put the money toward a new car. The grateful waiter has said that was exactly what he would do.
He owed it to the couple to honor their request and not use the money for anything else, he said.
That said, maybe crossing paths with billionaires is not the best approach in life. In British Columbia, don't try inviting the owner of the airline Virgin Atlantic Richard Branson for some casual kite-surfing.
Branson returned an invitation from Premier Christy Clark to go kite-surfing this week with an online suggestion that she accompany him and do so while naked, CTV News reported.
"I just don't think it's very respectful," Clark said, but then she also attempted to throw some humor into the story. "If that's his best pickup line, then maybe there's a reason he called his company Virgin," the premier said.
Speaking of those with enough money to throw it (and their dignity) away, don't try offering a disabled person money on the street in Cleveland.
A man named John Davis did that, and he was arrested for littering, WJW, Cleveland, reported.
Prosecutors later dropped the case, telling Judge Angela Stoke that money is not considered trash.
Good thing. Davis, not a billionaire, was facing a $344 fine for littering -- about $500 when court costs were factored in -- and then there was the money lost from missing work and for an attorney, as well.
Attorney Marcus Sidoti said he would donate his fees to the Different Needz Foundation.
A lawyer more generous and more dignified than a couple of billionaires? Yes, you heard it here first, folks.
Celebrity Couples of 2014 [PHOTOS]