I get that all the time. My little girl is a Service Dog (hearing dog) and people are always saying they don't believe it. Those ears of hers hone in on everything. Recently on a long plane trip just after we got seated and the plane took off she gave me the "cue" that something was wrong. Since I don't hear well that is her job and she is NEVER wrong. I tried to get her to settle down but she would not have any of it, so I had to crawl over the other two seats to get to the aisle where she almost jumped out of my arms toward the rear of the plane (we were in a bulkhead seat). When we got the back of the plan she let me know the issue was something about the restroom and when the flight attendant looked at me I told her I didn't know what it was but that I thought she should check it out -- she opened the restroom door and about 10 inches of water rushed out into the plane and water was pouring from somewhere -- one of the captains came back and went behind the restroom and eventually the water stopped.
From then on the "little hairy rat" was a hero because the captain said if she had not found the problem that quickly he would have had to make an emergency landing and would have messed up everyones trip. She got filet mignon and mashed potatoes from first class for dinner
Those ears of hers never miss!