The fact that Doomboros completely freak out when someone hurts a beloved master, going from cringing fear to utter berserker rage, is one such example; normally the Doomboros is terrified of everything, but as soon as that beloved master is hurt? It's asskicking time!
Also, Laverne and Funkle. Laverne is a giant termite-queen-woman, Funkle is a guy trying to turn himself into a sentient disease who currently looks like a fleshy tumor; and they are totally, hopelessly in love, which is both very sweet and incredibly Squick.
The entry on Shreeg describes how they love Songbirds, and will take great pains not to hurt them