Wah koaz. I did saw a few photographers asking model to pose specially for them. But asking them to unbutton or make slutty poses omg ... Wah liao... cheapo + sicko
Anyway, the respective brand booth in-charges should make the effort 2 take care of their models from being harrassed by such photographers, they should step in if when the models signal for help. I believe during the japanese race queens motor show, the gals are constantly being escort from booth to booth.
Another way is to shout out loudly what the photographer request to embrass him publicly
Model : "HAR, MUSIC VERY LOUD!? WHAT U SAY ? U WANT ME UNBUTTON WHICH BUTTON? CANNOT LAR"
Lastly, the possibility of a guy (wif a DSLR harrassing a model) buying a car is very slim. So dun worry abt offending such ppl. Dun worri about them lodging a complaint to ur model agency, I believe they would unstd.