She didn't seem too surprised?

I was flying back from vacation and I went to use one of the lavatories on the plane. I locked the door and quickly did my business but apparently the lock didn't work and a stewardess opened the door, looked down at what what I had, and kind of smiled after having looked down and asked me if "I couldn't hurry and clean myself up"? As if she sees this every other day?

She didn't seem too surprised?
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