fenner, i really agree with you about that. however, i will also say, it's been a long time since i've had a remark like that said to me, and when i see/hear others make such a remark, i kind of think it reflects more poorly on them than the person they intend to insult.
actually, one of my big pet peeves that goes along with this is when women use this as an excuse to be cranky, insensitive or otherwise ill-behaved. it's okay to not feel good, but when it becomes a permission to act out, it's frustrating to me.
i don't care how badly anyone feels, it's no excuse to be rude. and i'd say the same thing when guys use any kind of medical condition or mood to do the same thing. it's a cop-out.