doctor listen

Used carefully (taking particular care when inserting the unforgiving child-head-width plastic ear-bits into the ear) this is capable of allowing the heartbeat to be heard but it's impossible to tell if the wingpiglet is registering it when there are so many other noises around, primarily produced by him. Perhaps getting him to look closely at a visibly-pulsing bit of neck-skin at the same time would do the trick, though there's the risk that it would either freak him out or make him much too interested in peering at and prodding bits of skin on the neck.