I couldn't do it. My whole family....mom, dad, sister, both my brothers, my wife...everybody was there at the vet's office that day. I carried her back there to the table and couldn't hold it together. Had to leave. I couldn't bear to see her go. It was THAT hard for real. I cried like a little girl. Believe it or not, that was over 10 yrs ago. It still fresh in my mind like it was yesterday. She was that much a part of our family. It's hard.
Good luck in your show with your new pup.