Usually, the sergeant-at-arms for a club (or a Canadian parliament) is a purely ceremonial position that does things like carry ceremonial maces.
Today, Kevin Vickers, an older gentleman who was retired from the Royal Canadian Mounted Police, shot a gunman who’d already shot two on Canada’s Parliament Hill, in Ottawa: a reservist guarding the War Memorial, and a Parliament security guard.
Obviously, _he_ didn’t think it was all about the ceremony.
Today’s attack follows another domestic Canadian jihad attack on Monday, a deliberate hit and run of two Canadian military people’s car in a gas station, by Martin “Ahmad” Rouleau. One soldier in the car died, but the other only received minor injuries. Rouleau was shot and killed by police while trying to escape his car, which he had wrecked in the ensuing car chase.