Circle Jerks letter bomb

Tired of being bossed around
Getting the run around
Sweep your floors, empty your trash
You're the one who makes the cash
Tired of being a puissant 9 to 5
Open my letter, you won't be alive
Here's a present just for you
When you'll open it, you'll be through
Sit behind your desk, act like a king
Treat me like a human being
Give me the worst jobs, I'm getting mad
When you're dead, I'll be glad
Here's a present just for you
When you'll open it, you'll be through
Plastic explosive on your letter
You'd be better off dead
Hope the building crumbles on your head
Die, die