Just squash it like a bug

I realized it would be hard to explain to others by choosing to entertain a negative thought they would be bombarded in an instant with negativity that will immobilize them. My analogy to help.... It's like bringing home a roach from the store in your grocery bag. If you squish him quickly you will not be affected by it. On the other hand if you let it get away it will have 1000 babies that will then be overwhelming. They say roaches could survive a nuclear bomb which is similar to the endless stream of negative thoughts that run through your mind. It is easier to squash out any chance of a roach infestation when it's only one just like you should flush out a negative thought before it takes over just as quick. "Just squash it like a bug."