FWIW, I didn't charge the 97 year-old lady. The reason? I was talking to the head maintenance guy of the mobile home park when I picked up the bees at dusk from her home. I told him about the situation. He told me that if I cut her slack, he will - in turn - recommend me for multiple mobile home parks in that area. They are high-end homes for the most part. Retirees from up north.
Anyhow, my wife wasn't amused. But I took it as a loss-leader. It will pay off in the long run.
He probably would have recommended me anyhow, but I think my kindness made the deal sweeter in his mind.