Ouch! I've had to use muzzles on quite a few cuz they don't like getting their nails cut. They try to bite the nail clipper, & if my hand is in the wrong position, they'll bite me. So far...knock on wood, I've not been bitten.
When dogs are sooo matted, it really annoys me...what are these owners thinking? Seriously, some look like puppy mill dogs. It's awful.
Your thumb probably feels like it's throbbing...I feel pain for you. Take some pain killers (advil
) & make sure it doesn't get infected.