From an ad in a 1959 Cosmopolitan magazine. Horseback riding has many benefits.

♬ Standin’ on your mama’s porch,
You told me that you’d wait forever.
Oh, and when you held my hand,
My constipation worries are over!
Those were the best days of my life.
Oh, yeah.
Back in the summer of ’59, oh.

— If Bryan Adams has written about a decade earlier