Persistent earworm alert CLXXXIV

Inexplicably, a song I learned in grade school vocal music class, "I Caught A Rabbit," has been on my mind today.  I always thought "Who told you so?" was a puzzling response to the observation, "Rabbit run on the frozen ground."  I also hope, as I did decades ago, that whoever caught the rabbit was kind enough to either let it go or keep it as a pet.