I bought an apple yesterday, intending to eat it this morning. I like apples cold and crispy, so I left it by the open bathroom window. Then I decided to shower, so I moved the apple to the bedroom window. In the night, it was too cold to keep the bedroom window open, so I shut it, re-opened the bathroom window, and moved the apple back there. This morning, I forgot to eat the apple. As I was getting ready to leave for the day, I heard a gust of wind roll the apple off the sill, but I was running late and promptly forgot about it.
And that’s why there’s an apple in the bathtub of room 909.
UPDATE! When I returned to my room tonight, the apple had been neatly replaced on the sill.