Walks a Guy into rudderhorns: I now have a quite familiar place on my forehead where I keep hitting it against the rudderhorns when the wings are folded and I need something out of the cockpit :-(
The logbook, my wheelchocks, anything and I keep hitting my head on that same spot. No stitches yet, but uncomfortable.
Now I put on a clamp with a Remove Before Flight flag - but I already hit it, again..