Aside from layoffs that are purely financial, there are basically three reasons a person can be fired.
- Bad behavior
- Bad Performance
- Office Politicking
You probably know that it wasn’t behavior. You didn’t use the f word. You didn’t disrespect a customer. You didn’t tell your boss to go to hell.
Thus you may question if a termination is over politics or your ability.
The best evidence that you were treated unfairly in business is when the door is slammed shut. Normally parting ways is a difficult decision. If the employer was itching to remove you, it’s probably office politics as opposed to not being a good worker.
Slamming the door shut is immature, but seems to be common in Information Technology. It’s an industry that doesn’t have the sort of labor solidarity that other fields do, where childish behavior is very tolerated.