Lawyer grasping for straws

Actual line of questioning during a trial:

Q: Doctor, before the autopsy, did you check for a pulse?
A: No.
Q: Did you check for blood pressure?
A: No.
Q: Did you check for breathing?
A: No.
Q: So, then it is possible that the patient was alive when you began the autopsy?
A: No.
Q: How can you be sure, doctor?
A: Because his brain was sitting on my desk in a jar.
Q: But could the patient have still been alive, nonetheless?
A: It is possible, I suppose, that he could have been alive and practicing law somewhere.