[[caption-width-right:334:I'm sure it'll scare the cats awa- HOLY HELL!]]
* Even without ParentalAbandonment, the storm at sea, the Giant Mouse in action, and those freaking terrifying [[CatsAreMean mean cats]]. Dear God, won't someone ThinkOfTheChildren?
* The Giant Mouse wasn't accidental in the story, it was made to scare off the cats after all.
* The Russian cats in the beginning of the movie chasing after Fievel and the fact they were like monsters (in Fievel's point of view.)
** The humans at the beginning, who the cats were imitating. The movie started out with a pogrom.
* There's a whole lot of AdultFear too if you put yourself in Papa's position.
* If you were even remotely afraid of insects the swarm of roaches in the sewer were pretty creepy...
** Imagine them if you're Fievel's size, and the roaches are bigger than you are...*shudder*
** And that thing that was eating the roaches! It appears only once and is never mentioned again.
* One has to be a little disturbed by the fact that Fievel was nearly eaten alive by a cat in the middle of the movie. The scene isn't played dramatically, and Fievel escapes quickly, but when you think about it for a second... *shudders*
* One instance in ''Fievel Goes West'' was the hawk and scorpion scene. AAAAAAAAHHHHHHHH!
** The part where the scorpion almost stings Fievel right between the legs will make anyone cringe.
* The scene in ''Treasure of Manhattan Island'' where a factory worker is beaten by corrupt cops was quite intense and distressing.
--> '''Papa:''' [[NotSoDifferent This is just like Russia!]]
* Some of the monsters Fievel imagines in ''Mystery of the Night Monster'', like the one from the first scene.
** Speaking of monsters, in the original movie, just before Fievel is washed into the sea, the waves manifest as a {{Satan}}ic Poseidon that lunges at the ship, though this could be an interpretation of what Fievel thinks those waves are.