Regarding our friends, the Khajiit:
Do NOT refer to them as "Cats."
Do NOT serve them food intended for pet cats.
If you own a pet cat, do NOT call Khajiiti by your cat's name.
Do NOT attempt to grab their tails unless permission is granted.
Regarding our friends, the Bosmer:
Do NOT ask the Bosmer about adding vegetables to their recipes.
Do NOT cut down a tree in front of a Bosmer.
Do NOT ask how Bosmeri flesh tastes.
Do NOT ask how to cook a Khajiit.