clean up time

remember when you were a kid in art class? the last 10 minutes of class was always dedicated to "clean up", right? apparently, that rule hasn't stuck for the people who created the mosaic monstrosity on our block.

all of the work is said and done. the artist is not coming back. but the rest of the block is a mess! there are spots of blue, purple and pink grout everywhere. even on our front steps. and they left tile shards all over the place.

does anyone know how to clean up the colored grout? aside from calling the douche-ey artist and telling him to come back and clean up. maybe turpentine?

i'm pissed.