I'm always bruised on the hips or elbows, and I crash into furniture and door frames, etc. I bump my head on car roofs as I get in/out, and I have even knocked people down in public when trying to dodge them oncoming. Thankfully, this is only on foot, and not when driving vehicles. (Scary thought: I'm grateful that it's only on foot... I have a 53,000-pound Caterpillar bulldozer, and if I took a bad aim in that thing, I could knock a few buildings down by accident
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All fun & joking aside, the worst case was that I had "snapped a picture" of what was in front of me when walking in a store, and I was thinking about other stuff and not watching for new obstacles to come in front of me. A lady pushed her baby stoller in front of me, and I never saw it, and walked right into it and fell on my face on top of it! Baby fine, but I smashed up my face, and destroyed the stroller. The woman thought it was her own fault, but honestly it was 50/50. A normal man would have seen the stroller, I think. My psychiatrist says this is called "static-fluid spatial disorientation". It means that in stead of watching where you're going in real time, you take a snapshot of the room, and then your mind becomes busy with other things, and you keep using that "snapshot" to navigate until you snap a new one in a few seconds.
Charles