Help, Fable of
Receiving help can create lasting obligations, like a rider who won't leave a horse.
A fable says, that a horse, being too weak to contend with a stag called a man to his aid, who, getting on the horse's back, quickly put the stag to flight; but the horse could never get the man off his back, nor the bit out of his mouth. So it is with obligations incurred by receiving aid from others.