An architect, an artist and an engineer were discussing whether it was better
to spend time with the wife or a mistress.
The architect said he enjoyed time with his wife, building a solid foundation
for an enduring relationship.
The artist said he enjoyed time with his mistress, because of the passion and
mystery he found there.
The engineer said, “I like both.”
“Both?”
Engineer: “Yeah. If you have a wife and a mistress, they will each assume you
are spending time with the other woman, and you can go to the lab and get some
work done.