In our search to learn more about the F9 monkey yesterday, we happened upon another F-key that bankers are very passionate about.

It's the F1 key, and they hate it.

An investment banking analyst told Clusterstock that that F1 key is despised amongst bankers, because it opens up the Help Me window in Excel, which slows down the computer, takes a long time to shut down and disrupts the workflow overall.

What makes it worse is that the F2 key is probably one of the most useful and frequently used functions on the keyboard in Excel, because it changes a cell into edit mode and highlights the other cells that the cell links so. So naturally, it's common for those individual rushing to get work done to hit F1 accidentally instead.

The most effective solution has been to just pop the F1 key off their keyboard. The analyst told us that everyone in his group had their F1 keys missing from their keyboards.

The banker sent us a photo of his mangled—but much more efficient—keyboard.

A reader just sent us this photo of a banker friend's keyboard, which has the F1, Caps Lock and Insert keys popped out: