Apparently, this is an actual letter of resignation from an employee at "Zantex Computers", Australia, to his boss, J Pilgrim. His boss, known as Pilly, apparently resigned very soon afterwards!
Subject: Membership Renewal
A woman takes a lover home during the day while her husband is at work.
Joe was moderately successful in his career, but as he got older he was increasingly hampered by terrible headaches.
Three sons left home, went out on their own and prospered. Getting back together, they discussed the gifts they were able to give their elderly Mother.
A man takes the day off work and decides to go out golfing. He is on the second hole when he notices a frog sitting next to the green.