Stress

In times of stress, people revert to habit. In other words, when you are stressed out, your true self comes out. No matter what you've worked on, no matter how much you've grown, your original way of doing things, whether good or bad, comes out. Be aware and watch for this, so next time you are under stress you handle it better than you usually would do. It's the right thing to do and it models the way for others.