'A call you never want to get': Villa Maria school locked down during false alarm

• 10 a.m.: Police say emergency alarm was triggered, but was unfounded• 10-noon: Some staff, students locked down, others sent to Marianopolis College• 10-noon: Sweep of the school grounds reveals nothing suspicious• 12:30 p.m.: School sends email to parents to say children are safe• 12:45 p.m.: Some students still in lockdown; social media reports students would be released only to parents• 1 p.m.: Police say 70 per cent of students cleared from building. Operation