Why does Tom chase Jerry?
. Some reasons given may include normal feline/murine enmity, duty according to his owner, Jerry’s attempt at ruining a task that Tom is entrusted with, Jerry eating Tom’s master’s food which Tom has been entrusted with safeguarding, revenge, Jerry saving other potential prey (such as ducks, canaries, or goldfish) from being eaten by Tom or competition with another cat, and attempts to seduce feline femme fatales, among other reasons.
