- He's mental, I am not.
- He likes to leap off footstools, I do not.
- He eats woodlice, I do not.
- He likes to throw rocks into drains and into overflow piping, I do not.
- He tantrums A LOT, I only tantrum every now and again
- He sleeps with a rabbit, I suck my thumb (but don't tell anyone).
- He likes throwing things, I don't like picking them up.
- I like a quiet life, he does not.
- I like day dreaming, he stays awake now during the day.
- I like sitting quietly in a coffee shop, he like sitting throwing things in a coffee shop.
- I like a good walk, he would prefer to be carried on my shoulders leading to a small if slightly significant recurring pain in my neck.
- I like sleep, it took him over a year to get him over onto my team.
There you go, what more proof do you want?