The young lady didn't believe him and insisted he run some tests.
He opened the door and a big black dog came in, sniffed the duck , whined and hung his head.
Then a big Tom cat came in jumped up on the table, pawed at the duck, the looked at the vet and meowed.
The vet said well that confirmed it.
He handed her a bill for $1,200.00 Dollars
The woman yelled what's that for?
the doc said "I told you that the duck was dead, the bill is for the cat scan and lab report"