No, not on a motorcycle. I've been building this 12' x 12' utility shed in the back yard. Today I was standing on the top of a 6' step ladder inside the shed nailing the roof sheathing when the ladder fell over dumping me onto the concrete floor. You'd think a 73 yr old would be wiser than that! Wouldn't you? Nah! I think I placed my left hand and right hand still holding the hammer on the sheathing in a vain attempt to stop the fall. The ladder fell left and I fell to the right between the step ladder legs. Ended up on the floor, my cap went flying maybe when my head bumped the floor. My glasses went flying across the floor. But, somehow I didn't get hurt!! My left elbow is sore and I got a small abrasion on my right thumb but otherwise no injuries. My wife suggested my extra cushion helped protect me! Ha! So, don't do the stupid things that I do like standing on top of a step ladder! I got up and finished nailing the rest of the roof sheathing. And I forgot to buy lottery tickets!