Sharon Graham’s husband Jack Clarke created a misogynistic and toxic environment in the Unite the Union department he was given after she first became general secretary. In a series of abuses, Clarke joked about stabbing staff and colleagues were forced to go on sick leave, the Canary can reveal.  Two workplace grievances were filed against the then-head of the National Organising and Leverage Department’s Research Unit (OLRU) in 2018, which prompted an official investigation. In those grievances, shared exclusively with the Canary, staff complained of elevated blood pressure as a result of Clarke’s behaviour, for example, and “difficult” circumstances which left…