Here's one more:
http://fatpacking.com/ Backpacking trips for over weight people.
Click the "get data" button without filling any info here:
http://fatpacking.com/Success.aspx to see the reasons people don't finish.
"Participant was fully capable of completing the trip, but did not like backpacking, insects, and the lack of plumbing."
"Participant was most likely capable of completing trip, but after a long strenuous day, was no longer in the correct frame of mind to want to continue."
"At the last minute, participant dropped out of the trip before stepping foot on the trail."
and my favorite: "Participant was a very unhappy individual who, not surprisingly, did not enjoy backpacking either."