And, here I go, without more ado:
1. At an interview to a single woman: When are you getting married? To a married woman: Are you planning a family in the near future?
No matter what, these are personal questions and has nothing to do with ones capability. This is as good as saying married women and pregnant women are not 'employable'! Every employee is bound to serve a notice period giving the organisation enough time to replace the loss. I don't see how this situation is any different.
D, to your comment - What if a male employee moves on to a better job? Attrition is something that any organisation, small or large, will have to cope with. The trend analysis will tell you to expect a certain percentage of attrition every year and the organisation should have plans to tackle it. Moreover, this question assumes that it is always the woman who moves/ quits after marriage - Not so anymore. I see a lot of men moving places/ jobs as they see fit.
2. Two male colleagues discussing the absence of another male colleague:
C1: "He left early (which was well past official timing anyway)... he had to take care of his kid"
C2: Looking surprised, "What does his wife do? Already henpecked is it!" sniggers
4. Male colleague sharing lunch that he had cooked. Another MC - "That's the plight of being married to a working woman"
MC: Making it sound like it is some great honor "We need a young woman like you to greet the chief guest .."(hold a tray and offer the scissors)
The irked young woman refuses and the man turns to another not so young woman in desperation. There are atleast 30 men - young and not so young at the ceremony!
this idea is perpetuated and drilled into the social psyche by movies and TV series. I dont need to tell you the number of times any female villain has been portrayed as a drinking/smoking and partying girl and the minute she is "rectified" she is shown as wearing a saree and bindi and being coy!