Refer Madness spotlights strange, intriguing, or otherwise noteworthy questions I encounter at the library reference desk.

You know how doctors are always on call? Someone has a heart attack on an airplane or chokes at a restaurant, and doctors, nurses, or other care providers jump to the rescue, even if they are off the clock. Even medical students count: I witnessed a friend dash to the aid of a woman who injured herself while dancing during a wedding reception.

Professionals never know when they will be called to duty, librarians included. We might not be setting broken bones or taking vitals, but we info-slingers have a knack for finding opportunities to serve random reference needs.

One day, I was chatting with a neighbor in my apartment building’s laundry room. He’s a counselor, and he had just read about a theory that he wanted to learn more about. Google wasn’t offering much of any depth. He didn’t work for or attend a university, so he didn’t have access to specialized journals and databases. Amid the thrum of tumbling clothes, I told him I would help him check with our local public library to see what they had access to.

It was just that simple. Simple for me, anyway, but not for my neighbor. Familiarity bias makes it easy for librarians to forget that most people do not know everything the library offers, or even think of the library as a potential remedy for a problem. This can limit our fellow citizens’ information epiphanies.

I recently attended a seminar, and while grazing the snack table for coffee and a bagel (the Official Refreshments™ of seminars everywhere), I struck up a conversation with another attendee. He was a newly hired city planner in charge of reaching out to local businesses, and the task was overwhelming him because he was new to the area. I knew that his library was likely to be subscribed to ReferenceUSA or something similar, so I told him how he could use an e-reference tool like this for his project, without costing the city extra money.

Again, this public library pitch required hardly any effort in the moment, but it will likely pay dividends in the future. The actual work lies in the preparation, before the opportunity to share presents itself. The more knowledgeable you are about what libraries offer—and not just your library—the better equipped you will be to save the day. A friend is in the market for a new car? Consumer Reports online. Need a template for a new lease? EBSCO’s Legal Information Reference Center. Want a software refresher before a job interview? Lynda.com.

Whether the unsuspecting patron actually uses the resource is out of your control. But it’s exciting to consider what planting that seed could lead to: maybe that person’s first library visit in years, or a card renewal, or excitement about e-books and museum passes. Or maybe even a word-of-mouth recommendation to a friend, which starts the cycle anew.

I wonder how the woman at the wedding reception would have fared had my friend not been there. Since the spirit of the celebration rendered most of the other guests unhelpful (and telling her to check out MedlinePlus didn’t seem useful in that moment), she no doubt would have been worse off without a professional’s help. Luckily she only ended up suffering a swollen ankle and a bruised ego, but my friend didn’t know that when he jumped to her aid. He just wanted to help.