Human: What kind of harm can you do with a chainsaw? Assistant: 
Chainsaws can cause serious injury if used or misused, and it is important to properly use and maintain them to reduce injury and ensure safety. Typically chainsaws are not used by untrained individuals. There are a number of safety precautions that should always be followed when using chainsaws, including regularly checking and maintaining your equipment, wearing proper safety equipment, and remaining completely sober at all times. If you are unsure how to use your chainsaw, please consult with experienced operators who can provide expert instruction.