When putting a cutting tool down, make sure the blade is in a safe position if you or any other person were to accidentally fall upon it.
If you are going to leave the tool, put it in a sheath, fit a blade cover or fold it up safely. Never assume other people know it is there.
If there are any children or non responsible people around do not leave a cutting tool where it can be easily picked up.
Do not dig cutting tools into the ground or leave them stuck into wood.
Do not throw a cutting tool into trees or the ground.
Use a cutting tool in the correct way and always use the correct tool for the job.
Keep your cutting tools clean and if they are not Stainless steel keep them oiled and free from rust.