Me? I know why

Up and down, rider

if he falls, then he cries out

up and down, rider

if he falls, then he cries out

if he falls into the marsh

then the rider makes a plop

Up and down, rider

if he falls, then he cries out

if he falls onto the rocks

then his legs cause him pain

if he falls in the marsh

then the rider makes a plop

Up and down, rider

if he falls, then he cries out

if he falls into the ditch

then the ravens devour him

if he falls in the marsh

then the rider makes a plop