Engine Break-in - Ouch
Last year my brain froze as I put my hand into my running Super Tiger .51 while reaching to get the Glow igniter off. I had to go immediately to the Urgent Care for several stiches. Not exactly sure how many, but I do have a nice scar for a trophy. I've been at it 15 years and have always been careful; all it takes is one brain freeze and off to the hospital you go.
Doug