Dont tell my mom...shhhhhhh... but she can throw me off so easily. We have a bongo player that do the same thing....
My advise is to TUNE IT OUT!!! lol... I know that is something you heard before, but trust me... When you can concentrate more on what you are doing and focus on the drumming, and less on that tambourine player, the better off you will be... As a musician we all get faced with distractions... But we have to tune it out. Me too, even when it is my mom...lol...