Back in the 50s my lefthanded Dad was adjusting the front brakes on our Plymouth. Being a southpaw required his arm to be under the brakedrum. He was a longterm aircraft mechanic and knew about safety rules, but thought this would be quick, so he used the bumper jack, but couldn't find the base, so he set the jack on a 2X8, figuring the post would press into the wood. The wood split, the car fell, and Dad instinctively jerked up to see if my toddler brother was underneath. Result was 3 compression fractures of the spine & a broken forearm. My Mom heard the crash ran in, lifted the car with one hand and my Dad with the other, carrying him into the kitchen by the collar with the other hand and started calling around for transportation.
