so, i'm going to take another question from gideon, gideon cramer, former member of the san francisco graffiti advisory board. and let's hear what you have to ask. >> this is a follow-up question for larry. we were talking about concrete sidewalk graffiti and curbs. and your response was that that is private property or the owner -- the property owner is responsible. a number of my neighbors had asked me when they had graffiti said where do we go? technically you're responsible. so, what am i going to do? they ended up -- i said, do not paint over it. it's got to be power washed. you have to use -- that can be really expensive. they went and painted over it. and now it looks worse than the graffiti. i see it all over the city that a tag is painted over with brown paint, with whatever is available. and then it becomes a real problem because it's really hard to remove it then. so, i think that -- my thought about it, i know dpw doesn't have the financial resources, but realistically i think sidewalks even though they're kind of that nebulous gray area where technically they're owned by