In lucid 15, is about the main character getting constitpated and having to poop, this lucid is skippable as it doesn't have relevance to the story based arcs. In lucid 3, unflushed poop is comedically seen in a toilet which a character gets mad at another character for not flushing.
Lucid 5 has two characters get swallowed by a snake character. They escape and survive. Lucid 21 has the snake character swallow someone else, who does not escape/survive. Lucids 25 & 26 have brief panels where a character has been partially swallowed by the snake character and is peeking out of her mouth. They emerge safely.
Some of Randal's (sentient) dolls are broken in various ways throughout, but he's not particularly torn up about it. Not a child's toy, but could be similarly triggering: one of the shorts comics ("study") has Randal eat Luther's beloved VHS of Cats. Luther is not present, and the comic is dubiously canon.
Yes but in comic format and is warned about beforehand. Detailed horror-like image of the protagonist Randal from a different character’s perspective. Occurs in Lucid 21