I classify it as a bad dream and not a nightmare, since I usually am not terrified of what is going on.
However, I have had this issue at times. Usually I would "relapse" into going to a boasting session, or a period where I would go back, not knowing why and vowing to quit again (as if it was a smoking habit, though much more damaging). Or, a book study group or field circus group was preparing to meet (either it was at my home, or I was at their home and didn't get out in time). I have also had dreams where I was getting a dose of Kingdumb sxxx, that was going to ultimately damn my soul. Usually I would be either puzzled on how I got here or pxxxed at getting pulled here. Some of the Kingdumb "maladies" were weird--including The Jackson's Up On the House Top (the day that fine Christmas song becomes a Kingdumb Malady is about the day I plan to really return).
As for field circus, I have had that bad dream, too. Again, terror wasn't the issue. It was more about either not being properly prepared for the call, being forced against my will (or to stay out beyond quitting time), or something dreadful would happen (such as soul damnation) as a result. On occasion, I would actually be working a section of territory (such as an apartment building) or headed into the city from where I used to live. Generally, I would find myself starting at a house where field circus is meeting and not able to dodge going out without risking a hounding or being coerced into going out. At least, if it was in my house, the Christmas lights and decorations were often up.