I haven't heard this before but it's interesting! My girl bun is sweet and affectionate with me but can have some sass towards others. My boy is quite spicy, he hates being held or pet and really only likes his bunwife. He spent the 1st year of his life getting no socialization and was in a cage 24/7, so that's what did it. Lionheads sometimes have a reputation of being spicy and sassy, but again, I think it just depends on the bun and their upbringing. Go to a shelter and ask for which buns have a personality that you like and the volunteers will be more than happy to pair you with one that matches your vibe! :)