Slipstreaming buses

Except that said bus can stop in half the distance that you can, so you're gonna stack anyway... blah blah... search:

http://www.londonfgss.com/post98558-35.html

Yeah. A bus can decelerate at a higher rate than a bicycle, in other words its maximum deceleration rate is higher, but how often is it that a bus decelerates at its maximum rate?

I am fully aware that a bus driver could one day need to perform an emergency stop while I am right behind it, but how likely is that?