Tunnel Vision
We always talk about Take Two before you start a task. We are to look around before we start for any hazards that may cause us, or someone else, injury.
But what about when we begin to work? We become so focused on what we are doing, we get tunnel vision and start to ignore what is going around us, especially behind us.
Think about it. How many near misses have there been where someone was "just doing what they always do," and 'BAM!' there was someone behind them that they did not expect?
Please keep a look out of others when you are working. It may save someone a lot of pain.