What’s wrong in this picture? There are a group electricians working inadequately on a ladder, they are putting their co-worker in danger because of the unsafe procedure that they are doing to do the task.

Preventing errors from happening is something that can be worked on by taking the time to review your work and your worksite, when a colleague makes a mistake, tactfully step in, and don’t be critical or judgmental. Offer your help. Ask about the damage, who should be notified, what the next steps should be. Be proactive and suggest solutions.