Yes, we all work hard to pay our bills and taxes. Not sure why you mention this...
Of course, most people can be fired at will (depending on the state) because they don't have tenure, but that's a different story, right?
I don't understand this. I take it to be a sarcastic remark that indicates that you think teachers cannot be fired. That would be wrong. "Fired" per se doesn't exist in public education for teachers unless there is a heinous offence. That being said, the resolution is far easier. If one desires a teacher to be "gone" ("fired" in private sector lingo), admin just "non-renews" the contract. No reason need be given. It's quite simple. It is impossible to get hired if you've ever been "non-renewed".
So again, please make yourself aware of what you plan to discuss so emotionally.
It really isn't that way in my state. It is next to impossible to get rid of a teacher, even with good cause. All a teacher really has to do to keep his/her job is show up, most of the time. The rest of us have to pick up their slack to make the building run smoothly.