Which of the following is NOT a rule regarding robot safety?

Wearing loose-fitting clothing is not a recommended practice for robot safety. In environments where robots are in operation, safety protocols typically emphasize wearing fitted clothing to reduce the risk of entanglement or snagging in machinery. Loose clothing can pose a significant danger by potentially being caught in moving parts, leading to accidents or injuries.

The other options highlight important aspects of robot safety. Checking for signs of damage ensures that the robot is functioning correctly and minimizes the risk of malfunctions that could lead to accidents. Wearing safety glasses protects the operator's eyes from debris or hazards that may arise during robot operation. Locating the emergency-stop button is crucial for immediate response in case of an emergency, allowing operators to quickly disable the robot to prevent harm. These practices are fundamental to maintaining a safe working environment around robots.