Mr. Smith's wife has been in a coma | Marriage

Mr. Smith’s wife has been in a coma for four months.
The nurses have come to realise that she moves every time they wash her crotch area.
The doctors think hard about this.
They bring in Mr. Smith and say that they have a good idea.
Perhaps if he practices oral sex with her she will wake out of the coma. Mr. Smith would do anything so he asks for some privacy.
He soon rushes out saying, ”I think she’s choking!”