There was an old Tenant-era Dr Who episode where The Master says "shall we decimate them? yes, let's decimate them. REMOVE ONE TENTH." I instantly howled with

There was an old Tenant-era Dr Who episode where The Master says "shall we decimate them? yes, let's decimate them. REMOVE ONE TENTH." I instantly howled with anguish. Surely decimating them should mean removing NINE tenths. The Master was a small-minded coward.