Neil deGrasse Tyson ordered a hot chocolate with whipped cream at a cafe in Pasadena, California but it didn't come with whipped cream. This turned into an incident with the barista, and a lesson in physics.
The barista said he put the whipped cream on it. Neil asked, where is it? And the barista said said, “it sunk to the bottom.” Neil wasn't buying it, and told them: "Either the laws of physics that apply everywhere in the universe are suspended in your coffee shop or you didn't put whipped cream on my hot cocoa.”