That line could be attributed to many folk.
There are big regrets and small. Mine tend to fall into the latter. Sample....
During one of my trips to England I took a day trip to the east coast seaside town of Felixstowe. It was a pilgrimage, or sorts, to a place of a strong memory from my childhood. One such strong: At that time the Royal Navy had a base at the nearby coastal town of Harwich. As I sat on the beach one day a RN nuclear submarine sat still on the surface; I was fascinated by this sight. The day was clear and sunny, rendering the boat more as a silhouette on the horizon than anything of textured details. Sailors walked about the deck, and this naval action grabbed my attention in bits and pieces as I built my sand castle. Then it was gone, much like the crab that I had enclosed in a fortress wall. Those pesky buggers. Cunning, aren't they all?
Back, or forward, to 1990. I strolled the beach's length hoping to see some sea traffic. There was none that day -- at least not during the hours I was there. Another beautiful sunny day; just the way I had remembered Felixstowe.
As I walked about the town's streets on my circuitous way back to the railway station I happened upon a fetching poster. "Ron Goodwin conducts his movie themes!" Tonight! Felixstowe? I had left my stuff in a London bed and breakfast. Logistics. Why not call the owner, a super nice guy, and ask him to store my travel belongings for the night?
"You should have called me. I would have stored your stuff in the back room."
The above was first posted on July 25, 2018, as "Emotions Like Regret".