As tempting as it may be to make a smart remark when something is so obvious but no one gets it, you will have to restrain yourself. Take the time to explain why a situation is the way it is. Sometimes, what may be obvious to you may not be obvious for someone else. In this case, it will be up to you to help and show others so they are on the same page as you. So long as you keep a calm tone, others will surely see what you see soon enough.