Is a robot programmed to prank you annoying? Yes

New Scientist 

Is a robot programmed to prank you annoying? Feedback discovers a robot that can mimic Turkish ice cream vendors, who are known for playing tricks on their customers. Researchers concluded that customers, perhaps predictably, don't trust it Feedback is a grumpy sort, so we run a mile when faced with any kind of enforced fun. It is possible, therefore, that we would struggle to buy an ice cream in Turkey, because doing so requires enjoying, or at least tolerating, an extended prank. Turkish ice cream vendors are prone to playing tricks on their customers, like handing them a cone full of ice cream only to whisk it out of their grasp using sleight of hand.