No. I always give people a chance. I always ask their intentions or what they meant by saying something (instead of presuming or buying into someone's gossip about someone, like so many people seem to do). If they're needing for me to take on their beliefs (usually religious), and they keep pestering me with it, I'll kindly let them know I'm glad what they believe is working for them, but I'm happy with where I am. I'll let them know that if they keep trying to shove something down my throat, I'll have no choice but to block them. I've never blocked anyone without good reason.
