It was terrifying! I was so scared to hurt him. He has the 'puppy cut' so I used the 10 blade for the tummy/sanitary spots then a 4 for his back. What I was wondering is how do you do his tail and underneath his tale (he holds his tail down)? Do you use the 4 blade or the 10? I am so nervous because I nearly knicked him on the front of the thigh when I was going down the leg. He yelped but luckily I didn't break the skin or anything. I am just not sure when to switch from the 4 blade to the 10. I was told to use the clipper over the bottom of his paws but I was too nervous to do that...is it hard to do? I just used scissors to trim the excess hair but it was really tricky to get in between the pads.