Tony is so right about the difficulty when TW is on top of your leg and you feel pinned like a bug. A quick casual ride with the wrong street shoes awhile ago resulted in me in ditch with bike on top of me, all tangle-footed somehow in fender/fork/ tire. I was unable to begin extrication of my foot until I could slip off my loafer. Maybe if I had my boots on my paw would not have found clever hiding place between tire and fender. Then again with boots maybe I would still be trapped there.
I don't tell Mrs. Fred these stories as it just proves to her that solo riding is inherently dangerous.