Do you put maternity leave on your CV?

Today @Scientistmother asked the following question on twitter:

 

Q thats been asked before, how should we address gaps due to mat leave? cover letter or resume?
— ScientistMother (@ScientistMother) January 8, 2013

It’s been something that I have struggled with too: do you let people know you have (a) child(ren) or not? On the one hand it will explain any gaps you might have in your CV, but on the other hand it may lead some people (let’s say the gray haired male subset of people) to think that you won’t work as hard. And that maybe they should hire/fund someone who doesn’t need to leave at 5 to pick their child up from daycare, or who won’t have to stay home when said child is ill. 

I remember that I went to a talk at SfN last year about work/life balance and the speaker told us that research (that I’ve been trying to cite, but haven’t been able to find yet) has shown that for men it looks good when their CV shows they have kids (for example by including that they are on the PTA of their kid’s school) but for women it doesn’t (and even looks bad).

To speak for myself: I don’t really have a gap in my CV due to BlueEyes being born (although if I hadn’t been tired, nauseous and unable to think coherently I may have got more work done…), so I generally don’t disclose this on my CV or when applying for fellowships, unless for example a fellowship allows you to submit longer after obtaining your PhD due to parental leave. What about you? Do you disclose this somewhere and if so where?