From what I recall in the mags and what elders say, Df'ing IS NOT punishment. It is a casting out, basically the death penalty. In ancient Isreal you could be stoned but sadly the WTS does not have the power to do that. You are on your own to get back. Eat dirt and crawl in the back way , sit on the back row until they feel they have humiliated you enough. It is very dependent on each Boe .If you were well liked or the family of elders or others who are important, perhaps it goes a bit easier. .
Punishment would include marking and reproff announced to the congregation. Punishment and DF'ing are not the same thing.