I dont know if this were the right section i posted this in (so lets just call it a guide on how to Interrupt others hearthstone), i also dont know if this have been posted before.
I got like 1800 snowballs, and when we ran yesterday BRD i had 200 (snowballs) with me. We did finish the portal and my friend used hearthstone to go home. I threw a snowball on him and it interrupted the cast. I did this like 30 times and he got really pissed off, now i ended on his ignore list. But i had a really fun time during it.
(You can buy the snowballs at christmas in the cities, REALLY cheap).
Enjoy!
Btw, great forum. 10 times better then tault and hackingsource. I have tried both and they SUCK a$$ compared to this forum.