Completely agree, it is important, play with their paws and expose their claws when they are relaxed and happy, get them used to being handled like that before you try trimming. I had one who didn't like that too much, and she had to get used to it slowly, so I used to feed her treats while touching her paws, she settled in to not minding after a while, though to begin with i usually only ended up only clipping a nail or two... if your cat resists in any way, its best to stop, and then just try again later or the next day.... do get him used to you massaging his paw pads first.