Dear Eric: I was riding my bicycle when, unbeknownst to me, my wallet fell out of my pocket. My driver’s license, credit cards and about $200 in cash were in the wallet. Later that day I received a telephone call from a cyclist who found my wallet on his ride and told me that I could come over to pick it up. What, if any, reward would be appropriate? I gave a $30 bottle of wine.

– Grateful Cyclist

Dear Cyclist: How lucky that your path crossed with such a good fellow citizen! Etiquette experts agree that the amount of a reward in situations like this is really up to you. Often people take into account the amount of money in the wallet or one’s own personal financial situation. If you don’t have cash to spare, a gift or some other gesture is perfectly fine. So, the bottle of wine you gave works. My only suggestion, however, would be that, if this ever happens again (fingers crossed your wallet stays in your pocket from now on), you check with the recipient to make sure that they drink wine. It’s the thought that counts, but you don’t want your grateful efforts to put someone else in an uncomfortable or dangerous situation.

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Send questions to R. Eric Thomas at [email protected] or P.O. Box 22474, Philadelphia, PA 19110. Follow him on Instagram and sign up for his weekly newsletter at rericthomas.com.