Only problem I have with this, is the ability to challenge someone that is doing something. I'm not sure if this is a bug, maybe someone can tell me if it is, but when I was doing the Anko test, I got attacked mid question, they refreshed, and I lost credit for the question. I'm fine fighting randomly, I'm fine losing coins, cause I gained more then I lost, I would even be fine if I had to fight at any time like during a quiz. But what I'm not ok with, is losing out on one of my questions because of it.