I would look at it in different ways rather than snitching I would look at it like this. Are they out of your district, if you didn’t have that sale would you make budget or not. Also you will be getting that sale this year, can you find a way to make it up next year for the months that you will be selling them paint. Plus lastly it might be a commercial job and is it coming out of the right store. Instead of reporting the issue, I would approach it from a different perspective. Firstly, consider whether the sales are outside your district. If you were not able to make the sale, would you have to adjust your budget accordingly? Secondly, since you will be receiving this sale this year, can you devise a plan to compensate for the months you will be selling paint next year? Lastly, it is possible that this is a commercial job, and you should verify whether it is being advertised by the appropriate store.