Roger Houben, a 78-year-old man, attended a festival thanks to tickets gifted by his daughters. Concerned about his tendency to get lost in crowds due to his sociable nature, his daughters equipped him with a special T-shirt and a tracking device. This precaution proved crucial when Houben went missing at the festival. His daughters were able to successfully locate him using the tracker, preventing a potentially worrying situation from escalating. The story highlights the innovative use of technology to ensure the safety of elderly or vulnerable individuals at large events. It demonstrates a proactive approach to festival safety and the strong bond between a father and his daughters.