Yes unless you laser a piece of metal with a 45 degree chamfered edge I doubt you could get enough reflected power to burn your skin although I am not sure the eye is any more sensitive to far IR than you skin is. It won’t penetrate and burn the sensitive retina. It is just that a burn on the surface of your eye is a big problem but the same on your hand is just a minor pain.
Imagine lasering some non-pg plywood that has a fragment of metal embedded. Very rare but could happen.