[AOII Angel]

AOII has no ban on drinking in letters, nor does several other groups that were on my campus. All four sororities went to PIKEFest every year clothed in bid day shirts (usually sewn letters) and drank PIKE punch until we were all tipsy. Some groups may have a rule against it, but in my humble opinion, I won't do anything out of my letters that I wouldn't do in them! If it's a rule of the sorority in general or of the chapter, then I'd follow it. Otherwise, I don't think it is disrespectful.