harold you served 29.5 years. what is it like for families when you head out on the street and do your service? >> i think most of my time i didn't realize at the time that you know your family worries about you. they know that it can be a dangerous job. >> officer liu was telling someone why he became a police officer. he said i know it's a dangerous job but i have to do it. as we look at the city grappling with really intense relations. >> my comment was for you.