I told my manager that my mother had died as an excuse for the day off of work
Are you serious? Why would you tell your manager something so bad?
I wanted to go to a bar and drink some beers with my friends without him knowing about it.
If you don't feel like going to work, there are a lot better and more constructive ways than lying about your mother passing away. If you're caught lying then you could lose your job and look like an awful person. Try taking a sick day next time, you'll not look so bad if people find out you aren't telling the truth.
Haha you are so lame. Stop being so uptight. Everything works out for me, how can I be wrong.
Things will not always work out in the end. It is bad to skip work and lie to your boss. It's bad to make up a death in the family because when it does really happen, you won't be able to be honest.