If reverse has been selected you stay on the runway and stop.
Or, take it on to the grass. Touchdown at 130ish, full braking, max reverse will take you quickly to towards 100, a runway excursion at 100, with all the gear down and full reverse won't seriously hurt anybody. You don't have to "just run into something", in a car or aeroplane.
Originally Posted by TDRacer
If you're going well north of 100knots, it takes a long time to stop vs. taking off again.
You'd be surprised. Reverser stowing, spooling up, then finally commencing acceleration back to ~140 will take you longer than a max effort stop from 100kt.
717 FCOM:
