I'm going to stop a potential rape. I got to intervene.
Wait a second. What is going on? Do you know this is going to happen?
I know because the girl seemed too drunk and I saw her going upstairs with a guy to his apartment.
It can be dangerous to interfere but it is good to stop a rape. It will save the person a lot of trauma.
Maybe she's into rape though and this is part of her fantasy. I wouldn't want to ruin that.
Nobody is into that. If you really think that is going to happen you need to do what you can to step up and prevent it.