Being hogtied can be quite a challenge for the guy tied up.
The challenge that I have in mind would be for 6 hours.
I, for one, would welcome that challenge.
The pinching of the ropes, the abrasion of the skin at my wrists, elbows, knees, and ankles was painful, and the gag was murder on my jaws.
The first three or four hours were fun, but the last three or four were somewhat less than pleasurable.