How many favors makes you a sucker?
As wooters, redditors, and internet users in general, we all love good "karma." I'm sure most of us stretch that mentality into the real world, doing favors and helping others simply for the goodness that comes from doing good. But there are some people out there who will take advantage of this. They prey on those who do good deeds and seek them out whenever possible, never planning on doing anything similar for others. This brings me to my question:
How many favors, good deeds, etc. will you do for a person who never either reciprocates or "pays it forward"? Where's the line?