Juran's Law is a law used in the category of Total Quality Management. This law states that whenever a problem occurs during a process, only about 15% of the time is it the individual's fault, the rest of the time it is the process's fault. Therefore 85% of the time, the problem is the result of a system/process error.
just go to mouse settings click additional mouse settings and you can go to a speed tab to chance pointer speed. its probably set to a higher setting than what he normally uses