Last summer my son-in-law had a section of his fence fall. We put in new posts and stringers and started to hang he picket boards back on. I was using a square to get the proper spacing between the boards. At some point I slipped and the board was nailed crooked. That means the next was crooked and the next. It was only after nailing a half dozen boards or so we discovered the mistake. I immediately identified the problem. It was my old square. It had to go. I threw it in the trash and vowed I would never allow a square of any type to be in my toolbox again. Not only had that adjustable square failed to do the job, it was metal and sharp and old. I vowed "never again". as we redid our efforts.
That is what reasonable people do; blame the tool when things go wrong. If only I had instituted some common sense rules and proceedures before using the square, I would not have messed up the fence. We could have avoided the tragic waste of wood, time, and effort.
Makes perfect sense.