That matter , it is my firm belief that the best way to get even in life or to get the best of someone is simple. You don't do it by being mean or hateful or angry. You don't do it by being criminal or dishonest. And you certainly don't do it by going down to their level and then trying to justify your actions..... You teach people lessons by going out and being successful. No one likes to see a foe successful ... It gets under their skin in a major way. Heck... Even family members won't say it but most can't stand to see a member of the family they have always felt Better than, succeed.
So in order to deal with spurrier effectively is to win and be successful and then everything falls into place.
If you want to get even... Succeed. Works great on old classmates and x- wives too lol.