Funny thing about that...  those crucifixions were done near trails.  It was my way of making the models feel more at ease in case they thought I was up to no good - if they were close to a trail then they could easily call for help (we weren't in deep woods.  Well, during one of those scenes we heard a jogger approaching.  I forgot to bring blankets.  Without being able to cover up the tied up model I just told everyone, "hide" - of course the crucified girl couldn't do anything except hang out naked, lol.  The jogger was so into his jogging that he totally missed the hot naked girl.  It was really funny.  If I were jogging i would totally love to see a nude woman.  I thought about making a hidden camera bit of girls in the woods, pretending to be victims of a serial killer.  It would be funny to watch hikers totally unable to perceive the girls because they are in the "hiking" mode and not really looking for out-of-the-ordinary stuff.  But then, if we actually scare the hell out of someone it wouldn't really be funny.  A simple "boo" is ok, but making someone believe that he/she is viewing a corpse is not something I would want to do to a person.

To answer your question, I don't "get" people to do things.  That has a negative connotation (it makes me sound like some sort of evil genius).  There are people who would never do such things as pretend to be crucified naked, but there are also people who don't have the same hangups (pardon the pun). 

Take for example THE WORST HORROR MOVIE EVER MADE - THE RE-MAKE.  Almost every person in that movie was doing something bizarre.  In most cases these were people who got a really big kick out of doing that stuff, and many of the "takes" were ruined because we couldn't stop laughing, so it took a lot of do-vers to nail down those shots.  You can see in some of the facial expressions that the person was barely able to keep the laughter from erupting.

Ha!  You know what I mean.  I don't manipulate people into doing things they don't want to do.  The girls who are naked in my movie have been naked in other movies and photographs (I am not their "first").