Beagle `` Sherlock '' returns items forgotten on KLM planes by passengers . Sherlock 's trainer focuses on muscle strength , endurance and socialization . The dog is trained to sit still for long periods of time while the trainer talks about how he wants him to behave in public
Beagle `` Sherlock '' returns items forgotten on KLM planes by passengers . Sherlock 's trainer focuses on muscle strength , endurance and socialization . KLM launched service in response to high number of items left behind by passengers .