The study was obviously incomplete. It failed to mention that, on garbage day, someone could easily slip and fall in their shower, choke on a slice of toast, spill hot coffee on themselves, trip on a garden hose on the way to their vehicle, strain their back loading garbage, cut themselves on something sharp, slam their finger in the car (or pickup truck) door, veer off the road enroute, get sideswiped at an intersection. There are so many dangers in disposing of trash that I think we should all hire an independent personal garbage-getter to come into our homes and safely remove it. 
(Hey dg! Our new venture!)