Well, I have a lot of warning signs that tell me markets are not stable enough to enter, despite them showing entry signals. I use these signals to tell me I should not trade, and instead sit on the sidelines despite an over all positive looking chart.

I use similar tools to choose my exit points as well. Many times I will get these warnings almost as soon as I enter a trade. I get out right away because of it and often have very small wins, that would have been losses otherwise.

A good example is the common 1-2-3 reversal pattern. They lie and give false breakouts all the time (all break out patterns do this). I can spot many of these lies, and that signals a "Non Trade", despite the fact that the 1-2-3 just signaled a break out and would be a trade to anyone else.