If you hover your mouse in the fridge for too long, you'll hear dogs screaming in pain. In an ending, a character will express how they don't want to kill any more animals for them.
it is only talked about + i'm unsure if the character was a child or teen when it happened (both are technically children so perhaps it doesn't matter much?)
If falling off a building doesn't break a bone then I'd consider it a miracle – A character can fall off a building but I don't think broken bones are explicitly stated in dialogue or whatnot (I'll recheck later on)
Text only. One of the locations in this game is a party. If you go upstairs, there will be a drunk girl laying down. She will talk to you and you'll be able to do two expressions before the text "Hey.. You wanna, uhh.. y..", then the textbox will say "She makes sounds that usually precede v*miting". The text then will say that you helped her go to the bathroom, but you never get to hear or see anything. You can also talk to the owner of the party and some of her friends about this, but all you say is "I took her to the bathroom"
There's an in universe meme called "Dada Dog" (likely based on Pepe the Frog), that's accessioned with racists. The game doesn't not indorse this racism.