I'm assuming so, because my ds is an angel when he's with my mum and dad, and whilst not exactly a devil, he's a top notch whinger and trouble maker. (my dh is off work sick at the mo, so is an observer and has confirmed ds is so much better behaved when I'm not there)
My sister's dds are the same.
Is everyone's young dcs the same? What (if anything) do you do about it? Am I obviously a soft touch, or is it just a boundary pushing thing?
I don't smack or shout (too much!) and I am firm about things I think are important (meals, bedtimes etc) so I don't know if I am doing anything wrong or if it's just normal toddler behaviour.