STOCKTON — A man and a woman thwarted an attempted robbery and followed their assailants until police arrived to make arrests, according to the Stockton Police.The man and woman were inside their garage with the door open in the 10000 block of Reflection Lane about 7:10 p.m. Thursday when a male ran inside and tried to rob them. They yelled at the robber, who ran to an awaiting vehicle, which drove away.