One day we asked if they had a pest control company that they worked with. Yes, they did and the company came out once per month. We asked if they might think of hiring a different company that could eradicate the ant problem. They said that they hadn’t discussed the problem with their company. With one phone call, the ant problem dissipated.
What this situation taught me was that comments from fresh eyes can force people to self-reflect. Folks new to a situation may see it differently. Their comments may or may not be accurate, however, when someone questions something I’m doing I may not like what they’re saying but I remind myself about the ants and consider the observation. Sometimes it’s useful, sometimes it’s not but it does keep me from getting comfortable in complacency.