If you're unsure of how to do something, don't do it by yourself, better yet ask someone to walk/talk you through it. We've all been there (even the cocky nurses that act like they've never messed up...
There are so many but a cute one I remember was when I asked a patient if she knew how old she was (she was 103 so it was pretty impressive) she said no. When I told she stated "Oh boy! No wonder I'm...