I do...
my ex had the kids at the weekend & DD (2 1/2) told me shed been sick in her bed while away
I wrongly assumed she was making it up as exH had said nothing, but have just emailed him and he said that yes she was sick on Sat night but he didnt find it til Sund morning
I check every night b4 I go to bed & I know that ex doesn as he never did when we lived together
DD had suspected mengititus at 1 1/2 & only reason they rushed her into hospital was cos I checked her b4 I went to bed & called ambulance