When you put it like that it makes me think I should probably not drive 100+mph anymore.
It was also a bit eye-opening to read (I forget where) that the height of a tsunami generated by an asteroid impact in water is equal to the depth of the water where it hit. That has some mind-boggling implications for impacts over deep ocean, which also happen to be the most probable location for an impact. The deepest parts are over 6 miles (~10KM) deep. Surf's up!