My cat Flash had to have a catheter put in on Wednesday for a blocked urinary tract. He got to come home today, but I think he is blocking up again. He just spent 20 minutes in one litter box, and only produced a little clump--about the size of a silver-dollar pancake. Now he's in another litter box. The veterinarian is going to meet us at the animal hospital tomorrow morning at nine, so I guess I had better get to bed and try to sleep. Please pray for my poor little buddy.