If you're fired for cause, which it sounds like you will be, then they don't need to give you severance. Normally companies will give something to avoid getting sued for wrongful dismissal, because normally there are steps they need to take in order to avoid those kinds of lawsuits.
A termination clause is a provision in the employment contract that defines the rights of the employee at the termination of the employment relationship. It typically determines how much notice period and severance an employee is entitled to when the termination is on a without-cause basis.
The termination procedure for just causes includes identifying the reason, providing notice to the employee, holding a hearing, and issuing an official decision to the employee.
Keep it short and sweet. State they are being terminated, effective immediately, due to whatever policy they violated. Say no more than you have to. Make it clear there is no room for negotiation.
Termination for cause ensues when the employees' actions are against policy and may lead to serious repercussions for the company, clients and other employees. Termination of employee services with cause may be necessitated by a violation of the company's code of conduct or continuous poor performance.
Incompetence, including lack of productivity or poor quality of work. Insubordination and related issues such as dishonesty or breaking company rules. Attendance issues, such as frequent absences or chronic tardiness.
Just make sure you document the termination process well, including evidence of the misconduct. Write a letter of termination listing the behavior and reason for firing, and save a copy for your records. This will serve as valuable evidence if you need to prove it later on.