history: I accidentally left a very important document at home that I needed. It made me look bad in front of my boss I accidentally left a very important document at my house that I needed at work. It made me look foolish in front of my boss when I didn't have it :( Oh no. Did you explain it to him?
current: I did. He laughed it off, but it makes people believe you aren't up to the task. So, it's not a good thing
next: You'll be more careful next time. Everyone makes mistakes.