my Dad used to rest me over the engine with bonnet up and drive down the street listening for noises to rectify (health and safety) !!!!!
Reminds me of when I was a student; one of the medics I shared a house with was not thrilled to catch me using his stethoscope to listen to a noise in the motor of my RD350LC. Never stopped him from asking me to help him fix his mini whenever he had a problem mind you...
