'drug eating mage' is pretty accurate for this one.
Rather than-
"I need to find this 2000 year old, one of a kind, ancient chinese dumpling to go from intermediate level blah to intermediate+ level!"
it's more like-
"oh god, I'm terminally ill and in constant pain! I KNOW WHAT WILL FIX THIS! CRACK! Good, I've done enough hits and muggings to afford a month's supply of CRACK. Better start looking for more 'jobs' to get enough to make it through the next week. Oh good, these will get me enough CRACK to last through tomorrow-wait, where'd it all go???"