How do I force Nautilus to demand yes/no confirmation after hitting the delete key?

I am aware of the "Files"->"Preferences"->"Behaviour" option: "Ask before emptying the rubbish bin or deleting files" but it is checked and only applies on emptying Trash.

Is there a way to get a confirmation window before files are moved to Trash?

Background

The major problem I have is that I sometimes accidentally hit the delete key on my keyboard without even noticing. I'm sure it has happened and I can't live with the idea of looking through my trash folder to check if I am not going to throw away something I didn't mean to.