I just had a nice FaceTime session with a colleague who just received his CafeTran license (hi Jos!).
He told me that he had discovered something that really amazed him and asked me to report it ;).
The think is, when you press the Shift key and click on the number of a segment in the Grid, a whole lot of content is inserted in this segment (in the Grid).
I didn't know that, but I can understand who it frightened him.