Fair enough.

But......let's say it's like three in the morning, the place is kicking like crazy. Everyone is drunk or fucked up in some way shape or form. And I mean the crowd is like butt to butt, ass to elbow tight.
In a case like that, skin contact is like the rule. Are you really gonna blame a guy if he bumps into you and starts moving with you to the music. Most of the time he won't be able to say anything to you anyway cause the music is so damn loud.

and of couse, I consent that eye-contact is a must of course. It is just plain rude to jump on top of a girl when she can't even see you.