wing chun

I know some arrogant wing chun guys. I try to tell them that hitting a wooden dummy and playing gay games by sticking their arms together is not quite the same as rolling with a guy who is trying to choke you or bust your joints. Are there any wing chun guys who fight regularly nhb? Any success? I would think a decent grappler would beat them senseless and squeeze the wing out of their chun and the ving out of their tsun.