Not really related (only very tightly), but why oh why was the explorer/shell behaviour changed when pressing delete with a selection of files? In older Windows' (even pre XP I think) the very first thing that would always pop up was the security message "Do you really want to delete ...". So my fingers learned for things to delete, press delete and enter very fast after each other (to directly confirm the message)
Now there is a bigger delay between the time delete was pressed and the confirmation message comes up. And Explorer actually reacts on things in between. This change really bit me hard.
Once I got a trojan (must've been XP pre SP2), several Britney Spears Game.exe's appeared on a few folders. So I used search to find all instances. Selected them all, pressed delete followed by enter. Yay! Delete was passed of to the shell which did godknowswhat, and the enter press started all selected instances of the trojan. While my PC was going down I saw the shell delete confirmation box come up.