The Huntress Asked: "Would you consider anything that you misuse or overuse an addiction? What do you think that people are most commonly addicted to that could be perceived as risky behaviors? "

for the first part; There is a big grey area between addiction and just using it a lot. If you overuse something, but are not dependent on it, then it doesn't qualify as an addiction. However, if its to the point where its causing your life to spiral out of control, then its an addiction. As for misuse of a substance, I think that just a one way ticket to addiction.

Second part; I could say marijuana, but I've seen people smoke it for weeks straight and drop it like it was nothing. However, I think if you're addicted to anything, it's risky behavior.