second opinion

American Jokeには多くのカテゴリー毎に幾つものジョークがあります。今日はその中で "second opinion" についてのジョークを三つ紹介します。
その１：
A patient has a sore throat and goes to a doctor to get treatment for it.
Doctor: Your tonsils gotta come out.
Patient: I wanna second opinion.
Doctor: Okay, you're ugly, too.

その２：
Doctor, Can I have second opinion?
Of course, come back tomorrow!

１のジョークよりはちょっとましかな。 次ぎのはちょっと長いけれど結構良く出来ていると思います。
その３：
One morning, Kevin wakes up to find his dog dead, lying next to his bed. He can't quite believe it, so decides to take him to the vet. The Vet takes one look at the dog and says, "Kevin, I'm truly sorry, but your dog is dead."
"No. He can't be dead. I demand a second opinion!" replies Kevin.
The doctor nods and agrees. He goes into the back room and brings out a cat. The cat jumps all over the dog, bites it, looks at the vet and says, "Meow."
The vet again says, "I'm sorry but your dog is truly dead."
Kevin says, "No!, I don't believe it, I want another opinion."
The vet nods and brings out a Labrador Retriever, which then begins to jump all over the dead dog, tugging at it before barking, "Woof roof woof!"
The vet says, "Sir, your dog is dead. That will be 400 dollars."
" to tell me my dog is dead?" asks Kevin.
"Well," the vet replies, "I charge 50 dollars, the cat scan is 200 and the lab test is 150 dollars..."
洒落が二つあったのが分かりました？