Yeah, most rushees aren't really trying to be crazy or whatever, their filter just slips. Usually you can tell if someone wants in a sorority only for alcohol access (there ARE cheaper ways of doing that though)

Dealing with someone who says something weird and bring the conversation back on track is the sign of a good rusher.

(on a side note, I will never understand the people who complain when their fake ID gets taken away. "But I worked for 8 hours on it" "Yeah well, illegal. Stop whining.)