1. Illegal doings ( not recommendable)
2. Lottery jackpot/ Gambling ( not recommendable)
3. Investment/Businesses
#1 and #2 then it would really be your choice but when it comes on being ethical then we arent that dumb on which one should really be avoided if you dont like on getting imprisoned on which
same as you said that it would really be a different topic because this is pertaining about committing a crime or illegal things or something that shouldnt be done.
Gambling is for fun and not something that you could rely your living or survival or making it as a source, if you are that extremely lucky then hitting jackpots might also happen.
Investment would be the best choice but of course there would be no assurance but at least it would be the most realistic way on achieving out that certain condition or situation.
It is true that gambling is for fun and not for making money. So when we can make money from gambling, it's just a bonus that other people can get. But to get it too often, it won't be easy because gambling depends on luck. So, in this case, we should choose to invest or create a business to make money or profit to avoid the risk of losing big money at the gambling table. And even though investing or business also has the risk of losing money, we can manage it to avoid losing a lot of money.