I am not sure how Halle broke her toe. I let the two pups out at 6 am Friday morning. It was dark, and I couldn't really keep track of all they were doing. When they came back in, Halle was acting very subdued, which I thought was odd, but it wasn't until after she ate her breakfast that I noticed she was limping. When I looked at her foot, it was very swollen, and her little toe was splayed away from the rest of her foot. I imagine that she was running and caught it on something? That is what it looked like. The vet said that greyhounds break their toes more because their toes are so long. Not sure if that is true.
As far as walking, I don't think she really understands why she can't go. I know that I feel completely awful when I go out the door to walk Seamus without her. I had to put away all the toys because she loves to race around with them, and the vet said to keep her "quiet."