My computer messed things out a few days ago. First I just randomly collapsed for a couple of days, then my wife helped me to pull myself up (and showed me what to do, including walking through the trees in the Common) .
Random action, which I do too often,  reminds me of the time when, in the Common, I saw an elderly woman (well, probably my age!)  walking in the Common and, on each tree, cutting the ivy from it's rings - which could also destroy crucial parts of the tree. She thought that the iv killed the tree. For this and, for many other spontaneous actions, the action is "let it be".