Ad lib opportunities [cuppa prose - 1]

He began by viewing life as an almost unlimited ad lib opportunity.
His sentence commenced on Monday, on Thursday he paused for breath and water, and Saturday was his day of rest. On Sunday, the weather being fine, he went for a stroll in the park. The rollerskaters were in fine fettle, and his ad lib entered high gear. Pigeons and policemen took him in stride, and all in all, it was a superior day.
On Monday, his wife phoned.
"How's it going?" she asked.
"It continues swimmingly," he ad libbed, surprisingly tersely.
"Any job prospects yet?"
"I'm considering astrology," he replied, always good for a notional career move.
"What sign are you?" she -- uncharacteristically forgetful -- inquired.
"Libra, darling," he allowed.
On Tuesday, he picked up several astrology volumes at the used bookstore. "It's never too late to learn a thing," he remarked to himself, smiling, ambling down the sun-dappled sidewalk.
Autumn, however, was on its way.