Drive by quickie?

I had always wondered about this sign and the difference from a bump to a hump.. Well today I found out that a speed bump is for parking lots to keep traffic from 2-5 mph and speed humps are used in neighborhoods to keep vehicles from 10-20 mph (based on width and height)....   

My little trip into bliss was just a 498 mile drive and I never left Western Washington, my home state... Been a productive Sunday... caught up on laundry, mowed the lawn, cleaned the garage, and... Things that get put off living a busy work life... Back to Portland in the morning...