Do not take more than 3. You found it and the rule of finders keepers applies, but you have no need to harvest that many plants. They wouldnt care at all if two of their plants got jacked because they would be like "well, they coulda taken em all." And then they would be happy and smoke their weed. No bad karma would come of it because when you think of it, they dont need all that weed either. This way it balances out. I myself would take 2 plants. If i get broken bones, then someones fucked, and it definitely isnt me. I spare you 28 plants and you break my bones. A bullet will break your skull if you try that shit.