Just been on another thread elsewhere, where women are complaining about the amount of time their DP's take to poo in the toilet. Strangely enough, for some it always seems to happen when things are hectic with the kids 
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So I think this is a feminist issue. After all, mums can't just bugger off to have a 30 or 45 minute poo leaving young children unattended outside. But some fathers routinely do this, leaving their DP's to cope alone with the kids.