I'm simply not going to show up to work.
Why do you think not showing up is a good idea?
If you get the chance not to show up, you should take it.
We all have times when we aren't crazy about going into work, but it's unacceptable to simply not show up. Your boss is depending on you to be there and perform the job you're assigned to. Not showing up will leave them in a bind.
What if I don't give a fuck. I hate my job.
Just because you hate your job and don't care about it doesn't mean it's acceptable to not show up without letting your boss know ahead of time. Most places have a policy of if you do that too many times they just fire you without any discussion. Be careful, and in the future you need to show up or let your boss know you won't be there.