Each Friday night I drove my wife to the train station so
she could go visit her sister who was ill. Ten minutes
later, MY sister arrived by train so that she could manage
our house over the weekend while my wife was gone. On
Sundays this procedure worked in reverse with my sister
departing by train ten minutes before my wife arrived.
One evening after my sister left and while I awaited my
wife’s arrival, a porter sauntered over.
“Mister,” he said, “you sure have some system going! But
one of these days you’re goin’ to get caught!”