Speak, FIDO!
Imagine you're out for a walk with your family when a strange dog approaches. The dog isn't aggressive, but it seems something because it nudges you with its snout, and barks. What you don't know is that this dog is trained a person with a medical condition. Around lhe comer, lhe dog's owner has collapsed, and lhe dog instinctively runs off help. That's you! But how can lhe dog make you what's wrong?
(Adapted from https://www.timeforkids.com)