I realize that this bleeds heavily into two other current threads, but I think it is different enough that it deserves it's own thread at the risk of hijacking the other two.
So here is the basic question, why is it that some can have a brush with black magic and be rehabbed and others go full warlock? We've discussed what constitutes "gray areas" of the Seven Laws, what is breaking them and what isn't... However other than perhaps the ultimate punishment for what is seen as breaking them, what if that is beside the point?
What if the real answer comes down to a matter of addiction? We know in the case of alcohol and even drugs to some extent, some people can take a drink, even on rare occasions get drunk, but they do not develop a craving or addiction to it.. While others have no tolerance at all for alcohol, they "feel" one drink.. Some find pleasure in this feeling, some get a "high," others don't find the experience pleasant at all...
So what if black magic has a similar affect on the wielder of it? Like teenagers everywhere young people experiment with alcohol, even drugs.. Some get by with it for whatever reason, for others it ends tragically... Let's add that most know before hand some of the affects of these things, but being kids do it anyway.. Young kids with talent, without a wizard mentor have no clue, but they do know the sense of power over others it gives them.. That is the high they become addicted to, if they are too far gone, they cannot recover from it.. Some can dance in the gray areas of it without lasting affects, but the more susceptible may not.. So simple act of making a love potion may be a mere exercise for some, with others it signals a slippage into that craving for power..