TORONTO—An embarrassing crime wave has taken Toronto by storm as criminals, emboldened by Canada's ban on handguns, have begun holding up businesses armed with nothing but finger guns. Tim Hortons, a popular Canadian cafe, is reportedly among the hardest hit. Authorities confirm that the cashiers of Tim Hortons are routinely held at finger-point and forced to empty hundreds of dollars into cartoonish money bags. By the time police arrive on the scene the robbers are long gone. "It's absolutely terrible," said Constable Evans. "Since these thieves are using finger guns there's no chance of them leaving additional evidence at the...