CALGARY, Alta. – Screamworks Incorporated, the company behind the annual Halloween attraction Screamfest in Calgary, was recently convicted for an incident in which an employee was permanently blinded by a customer four years ago. The accident occurred during a Zombie Paintball event at the fest on Oct. 12, 2013, according to an undated announcement on the Alberta Labour website. A paying customer shot the worker with a paintball gun and caused irreversible blindness, the announcement read. On July 25 of this year, Screamworks was convicted of failing to handle equipment according to the manufacturer’s specifications, a violation of Section 12(d) of the province’s Occupational Health and Safety Code. Additional charges were dropped, and the company was fined $50,000 and ordered to serve 18 months of corporate probation, Alberta Labour said. Screamfest is Canada’s largest Halloween festival, running from Oct. 13 to 31 this year, according to its Facebook page.