Speed and there lack of...

It's funny to watch old people react to when I pull them over and tell them I stopped them for going to slow. There facial expressions start out as a look of disbelief followed by a look of being very concerned and worried that they now have to drive at the breakneck speed of 45 miles per hour. Then when they are free to go you see them rocket back into there seat like a fighter pilot taking off from an aircraft carrier because they floor the accelerator so hard, worried it wont be fast enough. Just go the limit, hell go ten over! It's ok, really! I won't do anything! Now go play somewhere else!