A few weeks ago a brother at our masjid who regularly gives the khutba talked about men's hijab :-) (what I mean by men's hijab is the covering that Muslim men are required to give)
I know, right! A dude bringing up the subject of men's hijab? It was so great subhanAllah!
He basically said "look brothers... you guys would talk endlessly about those sisters that you think don't cover correctly and yet you don't even come to the masjid in proper clothing."
He talked about how our brothers sometimes are so aghast if they see a sister who isn't covered and yet can't be bothered to properly cover their awrah when praying, let alone outside the masjid and in public.
He reminded the brothers of what areas they are commanded to cover and also that if the awrah is not covered, then salah is invalid.
mashaAllah it was great! This brother is one of my dear friend's husband and is a convert from Arizona. Allahu alem, he appears to me to be very sincere and intelligent. I always enjoy when he gives the khutba, especially this one :-)