1. The pupil below, did not listened to his teacher, when he was shown how to use a mallet and chisel safely.
2. He has not clamped the wood he is chiselling, to the bench. The wood is likely to slip, followed by the chisel.
3. He has also decided to use a blunt chisel. Chisels require sharpening in a specific way. A properly sharpened chisel, used correctly, is perfectly safe and will not slip. A blunt chisel, even one that feels sharp to the untrained user, will potentially slip. This is because, it will not cut into the wood and is likely to slip along the surface, especially if the user applies a forceful blow to the mallet. Even a blunt chisel can cause serious injury.
4. He strikes the chisel firmly, but, the chisel is held at a slight angle, which makes it slip.
5. He is not dressed appropriately for a workshop. No goggles, no apron and incorrect footwear.
This pupil has ignored the safety rules. He should have listened to the teacher during lessons and always respect safety instructions.