When should you not use a ladder?

Using a ladder comes with inherent risks, and understanding when it is unsafe to do so is crucial for ensuring safety. A ladder should not be used when the user is tired, as fatigue can impair judgment and coordination, increasing the likelihood of accidents. It is important to be physically and mentally alert when using any equipment that requires balance and concentration.

Additionally, using a ladder in wet or icy conditions significantly increases the risk of slipping, both for the person using the ladder and for the ladder itself. Wet or icy surfaces reduce traction, making it more dangerous to climb up or down, and can lead to falls.

Both factors—being tired and adverse weather conditions—contribute to situations where ladder use is not advisable, making "Both A and B" the best answer as it encompasses these key safety considerations. Ensuring that one is well-rested and that environmental conditions are safe is essential before attempting to use a ladder, thereby reducing the risk of accidents and injuries.