Patience! That's about the only secret I have. Norman hates having his nails clipped and it usually degrades into a 4-day wrestling match. Just when I think I have a foot, the little bugger somehow wriggles free. I usually have to loosely pin him down and grab a foot with one arm, then clip with the other hand. Bribing with a meal worm occasinally works as he's distracted by the treat, but they're not that big and disappear quickly, so it's a race between a quick clip and him quickly chewing. I'm happy if I can get a foot done in a night.