Cheating jokes

What is the definition of Confidence?
When your wife catches you in bed with

A college math professor and his wife are both 60 years old.
One evening the wife comes home and finds a note from her husband.
It says: "My dear, now that you are 60 years old, there are some things you no longer do for me. I am at the Holiday Inn with my 20-year-old student. Don't bother waiting up for me."
He returns home late that night

A married man was having an affair with his secretary.
One day, their passions overcame them and they took off for her house.
Exhausted from the afternoon's activities, they fell asleep and awoke at around 8 p.m.
The man told the woman to take his shoes outside and rub them through the grass and dirt. Mystified, she nonetheless complied and he slipped

A man, his wife and a good-looking stranger are stranded on a desert island.
The wife quickly loses interest in her husband and begins flirting with the good-looking stranger.
The three start to build a watchtower.
The stranger offers to take first watch.
While the husband and wife gather driftwood on the sand, the stranger yells, "Hey! No sex on the beach! Get back to work!"
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