I killed a rat on the beach and was accused of murder. Are all NPCs members of PETA?

Windego (human) will accuse you of murdering a neutral rat walking around (named Grandal), if you kill him. I don't have Pet Pal, so I'm not sure if he has any special significance, but I think going so far as to accuse me of murder, of a rat, is a bit much.

Another out-of-place interaction I had was with Amyro. I killed Saheila, and he accepted a bribe to forget about it. There is no way he would accept a bribe to not look for her killer, he believes she's more important than his life, so I doubt a little gift from the killer would convince him to walk off. Mechanically it works fine, but from an in-character perspective it felt wrong.