In Lucerne, Switzerland, parents hire Dominic Deville to dress up as an evil clown to stalk their children with texts, phone calls and letters, warning them of an attack: being hit in the face with a cake.
Deville told metro.co.uk: "The child feels more and more that it is being pursued. The clown’s one and only aim is to smash a cake into the face of his victim, when they least expect it, during the course of seven days."
However, if a child avoids being hit with the cake, then they are given the treat as a birthday present.
The evil clown can be stopped at any time, if the parents feel the child is too scared.
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Deville, who was inspired by horror films to start his business, added: "The clown will never break into a residence or show up at work. It’s all in fun and if, at any point, the kids get scared or their parents are concerned, we stop right there. But most kids absolutely love being scared senseless."