a bad day

the day started like this. so I got in the office pretty early today. I opened the pc, read the mail and saw a notice from our logbox (yep our loxbox does that), it said, I was unable to login yesterday and I was considered absent. I said "there must be something I can do about this". So I went to my manager and asked him what I could do. the look on his face was not that pleasant, he was like.. "try to go to the hr". so I did. I went to our hr and asked what I could do. to my surprise. there was nothing I could do to revoke what happened. I was like $#!%. so I donated a whole days work is that it?........(okay, I said something more polite).. she said there was nothing she could do. Man. I felt mixed emotions. I got back to my desk feeling stupid, sorry (I kind of gave an impolite gesture to our hr), and angry, not knowing at who I was angry with. So I tried to review our online policy page like a lawyer trying to find a hole in the system. and there it said that if in case you forget to login, you will be considered absent ... okay then, no use crying over spilled milk.