Dealing with employees after termination: How bad bosses show themselves. Signs of a bad boss if you've quit.
Anger or accusations from the boss when an employee is fired is unprofessional. Don't let the boss's emotional outbursts influence you. If you stay professional, you can't be blamed. As an employee, you also need an employment reference, so you should continue to work diligently. If even a calm conversation does not improve your behavior, you should contact the works council or a union.