ohhh....xeno!!!! I hope you are OK!!!!!!!!!! I can easily see how that can happen! I have not had ( yet!) anything fall on my head, but have had things cascade into my lap, onto my feet, etc. I had once to undertake an involuntary clean up of article piles when my darling baby boy puppy lifted his leg on a pile! The darling fellow was also into inventions...he made my computer speakers and my mouse wireless--what a smart boy, but those were already invented, and once he chewed up my USB memory stick. Fortunately his attempts at invention ended there...