Both dc (aged 5 and 3) are serious nail chompers. I have tried using the bitter paint-on stuff, but the (stubborn) 3 yo just says "yacky!" then continues chomping. Works a little better with the 5yo.
Any ideas as to how to prevent this? I was a chronic nail chomper for 30 years, and know how hard the habit is to break, but also how painful split fingers/thumbs/cuticles can be.