Here's a story for you:

While boarding an Amtrak train this morning, a woman passenger notices an Amtrak police officer treating her police dog in an abusive manner.  She is enraged by this behavior.  Instead of privately fuming, she decides to take action.  Several phone calls later, she is now in contact with an Amtrak Police sargeant and filing her complaint.  She has also encouraged a fellow passenger who witnessed the same behavior to do the same thing. 

Would you have done the same thing?  Or would you do what I frequently do -- Allow the "look the other way" thoughts to overshadow my initial reaction.   I don't know how...Nothing will change anyway...I don't have time...I shouldn't get involved...sound familiar? 

And yet we do have a voice, it's not that hard, we should get involved and it won't take that much time to do so.  We don't have to physically confront the person commiting the behavior in question.  We just need to report the activity so that some type of change has the possibility of happening.  If there's no obvious "superior" to complain to, than right a letter (send an email) to the local paper.  Let your voice be heard and recognized.

We might not be able to influence the type of change we are imagining, but we will influence others - some way, some how.  Think of all the other passengers who are witnessing these two individuals take action and exercise their voice.  Maybe the next time they witness something, they will take action, too.