So which did I use?

Not even noticing at all the faint dark black words  DIRTY  I methodically chose a nice dirty spoon and went to stir my delicious hot cocoa ....I thought ...hmmm..this spoon looks dirty, but surely NOT.  After my "snack" and hot chocolate I finally realized my faux pax as I bussed my utensil and plate and cup....:)   a senior moment ?   bad eyesight?  Just plain too rushed I think and a bit embarrassed ha ha.  One has to laugh at oneself to that's for sure!
  extra is of a sign I liked!