last week when it was suggested to keep photochemistry out of the reach of children because developer and fixer were harmful to one's health ...
... it seemed "kooky" ---- "children were being protected" = "nanny state" &c
now ... when an adult asks if it is ok to reuse fixer-jars for beer
it is OK to say that photochemistry is harmful to one's health ??
I don't know what your point it. That conversation was pretty clearly tending towards respect for photo chemicals.