A little bit of embarrassment is easy to get over.

When I was in high school I got a bad feeling that something might have happened to a neighbor and ignored it. It wasn't anything nearly as obvious as screaming and banging. Mostly, I had just noticed that it was a lovely day and she was not sitting on her porch but, since she actually had fallen and broken her hip and laid there for a couple of days before anyone found her, 25 years later, I still feel like crap for not checking.