Aftermath of the vet visit

He got three shots during Friday's annual check-up. Last evening and
today he seemed to be suffering a swollen butt. He squeezed like his
feet being stepped when I touched his butt and walked away from me
with enough anger. It's his left butt. :D Poor guy. This is his first
time to have some reaction from a vet visit. This also anwsered our
constant doubt that if the dog ever received more than one hundred
dollar worth shots during each anual visits. He was sent to a room and
was sent back unchanged in five minutes. Well, this time he must meet
some inexperienced nurse...