that cannons at perfect height to ruin someone’s shins, sea shanty related:

“My son John was tall and slim and he’d a leg for ev’ry limb.
But now he’s got no legs at all for he ran a race with a cannon ball
(vocalizations) Timmy roo dun da, fadda riddle da
Whack fo’ the riddle Timmy roo dun da” -smokey bastard