My business partners have a lot of cats - they never even bothered to ask. :D
Aside from one ear nick that refused to quit bleeding (a technique I learned from @earcutter) I never really had a "cut" that showed enough to generate questions or excuses - I mostly collected little dings that gave up after witch hazel, cold water and/or a dash of styptic. Not ding proof, it still might happen when I pick up a square point razor after a layoff.