The sign in the store window caught my eye. Lessons by Appointment Only.
It seemed reasonable. Ask the expert at the golf shop to schedule lessons for you; they'll check their calendar and arrange it.
Giggling as I drove away, I wondered what if life was like that? No lessons, baby, unless we ask first. Lessons by appointment only!
Would we ever call and ask for life's lessons? Lessons might be avoided by those who already think they know everything. They'd be lost on anyone who simply wants to avoid pain. They'd be lost on the arrogant who arrive at their supreme knowledge au solitaire.
How fortuitous that the best lessons in life arrive on the unwitting.