"Sex! work or play??" joke

A man wondered if having sex on the Sabbath is a sin.
The reason is because he is not sure if sex is work or play.
So he goes to a priest and asks for the priest's opinion.
After consulting the Bible, the priest says, "My son, after
an exhaustive search, I am positive that sex is work and is
therefore not permitted on the Sabbath."
The man thinks, "What does a priest know about sex?" So, he
decides to ask a minister. The minister gives the same reply
as the priest had given him. Sex is work, and therefore not
permitted on the Sabbath.
Not pleased with the reply, he seeks out a Rabbi. The Rabbi
ponders the question, then states, "My son, sex is definitely
play."
The man asks, "Rabbi, how can you be so sure when so many
others are convinced that sex is work?"
The Rabbi replies, "If sex were work, my wife would have the
maid do it."