"Signing The Death Certificate" joke

A defending attorney was cross examining a coroner.
The attorney asks, "Before you signed the
death certificate had you taken the man's pulse?"
The coroner says, "No."
The attorney then asks, "Did you listen for a heart beat?"
"No."
"So when you signed the death certificate you had not taken
any steps to make sure the man was dead, had you?"
The corner, now tired of the brow beating says, "Well, let me
put it this way. The man's brain was sitting in a jar on my
desk, but for all I know he could be out there practicing law
somewhere."