That reminds me of the -i option to rm on unix systems... -i stands for interactive which means it will ask you "Delete yes/no?" questions before each filename you pass it. Neat feature for newbies right? Just alias 'rm => rm -i' and now they wont come running to you after accidentally deleting something.

Well, it turns out that people that learned on these aliased systems developed the habit of typing 'rm *' then using the y/n questions to filter out which files they really wanted to remove. You can imagine the havoc caused later on when these people were let loose on a system that didn't have the alias set up for them......

-Blake