Frustrated ferry passengers have threatened to ram their cars into CalMac staff after sailings were delayed, a trade union chief has warned.
Martyn Gray, of seafarers' union Nautilus International, claimed workers were also retiring early amid increased intimidation - while a fellow union organiser said police had been drafted in on bank holidays.
Labour MSP Monica Lennon said: "This is shocking and shameful. Scotland’s ferry crisis is putting the safety of crews at risk, and the buck stops with the SNP’s transport minister.
