Nova Enchantment

Ok so I own some man land in a sim where someone has a adult themed club. Ok I'm sitting on my own parcel and this guys guest sends me a message. Call me all kinds of nasty names is there best way to say it. Not only to me buy a friend on my parcel. So we blocked the person ok cool. and I asked the club owner to deal with his guests on the matter at hand. Only to be told in this order. 1) did I read his rules? (no I did not read your club rules in a sim we share as land owners in.) 2) You must obey my rules (So ever one in the sim has to let your guest bash them with such names)

So I have googled this for hours and I just can't seem to find it. I know it can be done but I'm not sure where to start on it. I have my full script all ready set up just need a way to do this. So What I want to happen is for the script to reset only if the Notecard changes. So if I drop an item into the object I don't want it to reset ever time its changes Only when the notecard is updated. How would I go about that?