GRASS VALLEY POLICE DEPARTMENT Thursday 9:12 a.m. — A caller from the 100 block of Margaret Lane reported that someone hid a bicycle in his yard. 10:23 a.m. — A caller from Dorsey Drive and Highways 20 and 49 reported two juvenile females sitting on the overpass rail facing southbound closest to the Catherine Lane side. 11:02 a.m. — A caller from South Church Street reported a juvenile that just took off on foot and is hitting himself with a rock. 12:07 p.m. — A caller from the 200 block of Joerschke Drive reported that a neighboring resident keeps giving …