Last week I was investigating something related to Gmail. I needed to upload a picture from a web server.
When you create an e-mail and want to include an image you click on the little icon and tell it is located on the web server.
What I noticed is that when the image is called 1.gif, Google will try every character so it tried to find 1, 1.g, 1.gi and 1.gif.
I would have expected them to wait until I stopped typing but apparently not. Yes, sometimes browsing a log is interesting.