Getting fired can be a real shock to the system.

But there are usually signs that your termination is pending. You've just got to know where to look.

Maybe your boss is out to get you. Maybe you've been embroiled in some recent controversy at work. Or maybe your organization is undergoing a massive transition or merger.

Either way, it helps to be prepared.

Lynn Taylor, a national workplace expert and the author of "Tame Your Terrible Office Tyrant: How to Manage Childish Boss Behavior and Thrive in Your Job," tells Business Insider that the savviest professionals always keep an eye out for the classic signs that their job is in danger. This way, if and when they notice red flags popping up, they can attempt to turn the tides before it's too late.

Here are 23 signs you may be getting the boot:

You receive a bad performance review (or two, or three)