.......during suitably cold and damp cross- country run at well known military college in Lincolnshire, a PTI was impressing the too-clever-for-their-own-good studes with his knowledge of anatomy and physiology...
"And what's this muscle called?"
<points to rear of lower leg>
"The calf, staff"
"And what's the proper name for the calf?"
"A baby cow, staff"