Firstly, track it before you eat it, then you will know the impact of it and decide whether it will be "hurt" or hinder your results.
The fact is, when you give yourself these treats that don't fit in your calories, you are only lying to and cheating YOURSELF. You have to decide whether it is really worth it.
The GAIN scores are totally based around your mindset and many clients who get a high score here report back that it has helped them with other areas of their lives - including their ability to stick to and stay focused with diet plans.
For more mindset coaching we also recommend our Black Box programme.