My youngest son can be very contrary. People say it is just a phase but it has lasted for 10 years - and he is only 12.
This conversation today sums him up.
I walk past him putting on his shirt - it is inside out.
Me: Your shirt's inside out.
Him: No it isn't
(he carries on putting it on - then realises it is (YES I am right!!) and takes it off.)
Me: You always have to disagree with me don't you.
Him: No I don't.
I rest my case.....