My little (OK, big) Ellie-bun went forever without getting her nails trimmed because frankly, until I got my housebun, Pippi, I didn't know trimming rabbit nails was a thing. I figured they'd just scratch the wood of the pen and be fine, and that's exactly what Butterscotch does. I barely have to trim his nails. But Ellie's nails get really nasty and wonky, and she doesn't seem very happy about it.. it seems like once the twisting starts, you can't really fix it if it begins where the quick is, because you definitely don't want to hurt the bunny, so I just keep a watchful eye on Ellie. My brother and I have to double team on her, since her nails are dark- I look for the quick, and he trims. We make a good rabbit grooming team. ^_^