Just to add to the grinder related injuries. This was my own stupidity with a 5" grinder with a twisted wire wheel.
I was cleaning a stainless trowel, using my left foot as a clamp on the ground. Two hands on the grinder and the wheel caught the edge of the trowel. Throwing it into my calf.
Such a quick action caused a lasting impression.
Fatigue was the cause of this action. Tired decision making and a "I know that this could happen" thoughts crossed my mind.
Be careful in the shed guys/girls.
Damo's dodgy boat building factory.