I know of a brother who is accustomed giving talks to brothers and sisters, so once he was giving ghast bayaan to five brothers, and he said 'brothers and sisters' and then he said...'but wait there arent any sisters here'. Then throughout the talk he made the same mistake, and all five of us were holding back laughter.He repeatedly had to say that we were talkin about serious stuff and it was no place for laughing. The brother is actually a member of sunniforum but I havent seen him post in a long time