When I was a freshmen I was dating an older engineering major from a different school. He joined tau beta pi and engineering honor society. They sort of did some hazing by making the pledge class file and polish their metal symbol thing and do these projects before being initiated or whatever. And then afterwards they had social events and did community service and stuff like that. They did engineering stuff too. No big deal I guess except for the fact that this boy was the reason I didn't rush my freshmen year because "what would my friends think if they knew my girlfriend was in a sorority?"