<s>[INST] I am trying to improve my joke writing skills. I think the following punch line is funny if we suppose that "cat scan" refers to an actual cat scanning instead of a computer tomograph and "lab report" refers to an actual labrador reporting instead of a laboratory. Can you write the setup?

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The vet shrugged, "I'm sorry. If you had just taken my word for it, the bill would have been $50, but with the Lab Report and the Cat Scan, it's now $1500." [/INST] A pet owner took their cat to the vet, worried that something was wrong. The vet examined the cat and said, "I think I know what's wrong, but to be sure, we'll need to do a Cat Scan and a Lab Report."</s>