That you don’t do the following:

Give a beggar just one penny. Okay, I was walking near Columbus Avenue around Boston Common and there was a man on the sidewalk asking if I had any change. I did have some change, but I was in a rush so I just quickly reached in my pocket and pulled out…one penny. I dropped it into his coffee cup container and then…he went apeshit on me! “One fucking penny, are you fucking serious?” he said before giving me a right hook to the shoulder and throwing the cup in my direction. I said “that’s all the change I could get!” As I was walking/jogging away, I could hear him repeat “one fucking penny!”

Hot damn, don’t do this.