We noticed Penny licking her paws and chewing her nails more than normal. Upon inspection I found a deep, non-bleeding cut in the middle of her pad on a back foot. We think she may have stepped on a piece of broken glass the previous day. Blisters from too much asphalt running earlier this year and now this. We've learned it's a good idea to keep a cone collar around. And to regularly check her feet. Hope it heals by Friday so we can leave her with her daycare for the weekend as planned.