I'm alumnae and I would never do that. I would directly address that person and ask her when the party was going to be at her house so you could go trash it. I bet she wouldn't like it very much. A sorority house is a home to active members and she must have let that slip her mind somewhere down the place.
As for them drinking in their letters...in my sorority that is NOT allowed. We believe that is totally disrespectful to our organization.
If older members are being petty about this whole situation maybe it is better that they are not around. Sorry to say this but it is true in some cases. There have been a few drama queens in my organization and the active members don't make a great effort to keep them involved.
I hope this helps a little bit
