Firstly, if we became HalfHuman & HalfDog, our Doghalf may keep on chasing its tail!
Secondly, if we became HalfHuman & HalfDog, for no apparent reason, our DogHalf may start barking!
Thirdly, if we became HalfHuman & HalfDog, our DogHalf may keep on licking other people!
Lastly, if we became HalfHuman & HalfDog, both our halfs may have completely different styles of eating!