I had to join this one, my DS nearly 2 is also addicted to chocolate, i tell people i will have to take him to chocoholics ananoumus soon.
He stalks the fridge, he doesnt ask for it but when he is given one peice he will want more and more and more.
If the other two have chocolate he will go nuts till he gets some.

I have put it all away and he is given a little bit every now and then.
I must add he is one who can't just have a little of something , if he sees the packet he wants to eat it till its all gone.. everything is now put in snack packets.......