Biggest burn I had: Drag and dropping a named folder on the desktop where a folder with the same name already lived resulted in the desktop folder content bein

Biggest burn I had: Drag and dropping a named folder on the desktop where a folder with the same name already lived resulted in the desktop folder content being replaced with the dropped folder content and the loss of all its content. I was expecting a merge or a copy/overwrite dialog, not the overwrite of the desktop folder content.