Kids can usually garauntee to put their foot in it! Glad your nephew did some fast thinking there.........however, my daughter was not so sharp............
Once, me and partner and daughter were going out to dinner with his parents, i think she was about 7 at the time(my daughter that is)...well that south park song was out at the time 'chocolate salty balls'...my daughter kept coming out with ''oooooooh, suck on my chocolate salty balls'' and i said that she better not sing that in front of my partner's mum and dad cos they wouldn't know the song, and that nanny will think of 'balls' as a swear word........SO......
we are in the restaurant, and it goes quiet, when my daughter starts off ''ooooooh suck on my.....'', I shot her a look and she panicked and said ''....*****''
Me and my partner didn't dare make eye contact cos we knew we would just wet ourselves!
His mum looked horrified!