Now, that responsibility changes if the misinformation starts to spill into the rest of society. If your friend decides to teach the evolution of the unicorn species to a second-grade science class, intercede. If he demands that the local public library move its unicorn material into the nonfiction section, intercede. If he tries to persuade his wife to pawn her jewelry so that they can convert the garage into a unicorn stable, inform the wife that she’s married to an irrational person. But if he just thinks something crazy, you can let him be crazy. You might be crazy, too, sometimes.

BRAND BETRAYAL

I accepted a gift from my insurance agent. It has the company name and logo on one side. I dislike advertising on clothes and such, so my inclination is to carry the bag logo-side in. But am I obliged to show the company name because I agreed to take the bag? ARLINE JACOBSON, PORTLAND, ORE.

I assume the bag was given to you because you purchased an insurance policy. You didn’t ask for it, so you can use it however you want. It would be different if the policy’s existence were contingent on your willingness to advertise for this company, but I can’t imagine those were the conditions of the transaction (unless “Arline Jacobson” is a pseudonym, and this question is actually coming from Lady Gaga).