Shot. That is a really scary word to a little kid. I know it used to be to me! I always dreaded getting shots. I'm not so bad now because I had to have allergy shots for about 3 1/2 years. That kinda helped me to get over my fear.
Here is a joke that I found on this subject........
While I was working as a pediatric nurse, I had the difficult assignment of giving immunization shots to children. One day I entered the examining room to give four-year-old Lizzie her shot.
"NO! NO! NO!" she screamed.
"Lizzie," her mother scolded. "That's not polite behavior."
At that, the girl yelled even louder, "NO, THANK YOU! NO, THANK YOU!"