In his essay “To Tell a Chemist” (1965), Asimov proposed a simple shibboleth for distinguishing chemists from non-chemists: ask the person to read the word “unionized”. Chemists, he noted, will read un-ionized (electrically neutral), while non-chemists will read union-ized (belonging to a trade union).
If you don’t test for it, it WILL rear its ugly head again.