Extension cords, decorative candles and space heaters all have their usefulness. Unfortunately, many fires occur because these items are used improperly or are left unattended.

To be safe, never place a burning candle near any object that can catch fire, always keep them out of reach of children and/or pets and never leave burning candles unattended.

Misused, overused, faulty or damaged extension cords are also  dangerous. Minimize your use of extension cords and never use one that is damaged. Also, you should never use an appliance that has a damaged cord. If a cord becomes hot to the touch, stop using it immediately.

Source: Kentucky Public Protection Cabinet/ Department of Insurance