It does not appear to have been used, however I will wash it repeatedly with chemicals left over from the set of “Breaking Bad” just the same.
The problem with mugs, my wife, instead of reducing her own stuff, she will periodically go through the mugs, and donate most of the ones that she doesn’t personally use. My son’s black “Skull and Crossbone” mug is also at risk.
This makes me wonder, how many times has this “Old Fart” mug cycled through the thrift-store ecosystem? Maybe I should just throw it on the patio cement and put it out of it’s misery.