On saturday night I invited 2 of my female friends round for a few drinks and x-factor
Both in a relationship, both got dc with their dps.
Both their DP's were at home, yet one of my friends bought her dcs with her as her dp didn't want to "babysit" (her words) and the other one didn't come in the end because "her dp won't have the kids" 
I didn't mind my friend bringing her dds, they are sweet little girls and no trouble at all. but I just find it disgraceful that their so called "d"p's won't even have their OWN kids. Its not the first time this has happened either. We went out in town the other week for another friends birthday and she had to ask her MUM to have the girls as her dp wouldn't. so he sat at home kid-free while his MIL had his kids. disgusting.
Reading this back, it sounds so ludicrous to me, like I have made it up
if I go out without dc it wouldn't even cross my mind to think DH would mind staying in with the dc, and vice versa.
Oh and this has reminded me of my own personal bugbear as well, ITS NOT BABYSITTING WHEN ITS YOUR OWN DC. Ok useless dads?????