This is something that I must admit is very difficult for me at times. More often than I had realized actually. Keeping my mouth shut - or keeping my fingers off the keyboard, as the case may be...Arghhhhhhh!
What I find striking is how these views and opinions, some we're not even aware of, can suddenly rush to the surface in full battle gear ready to take on the opposition. The difficulty would seem to be in resisting the urge to respond, but that's not it at all. The true challenge is in understanding that urge. Seeing it for what it is and knowing where it comes from. Once it is seen clearly and honestly it drops away as quickly as it came. No big deal.