[unreal37]

I never had much problem ending an interview early. It doesn't happen often, but it does happen that after about 10 minutes I know this person had 0% chance of getting hired. They just don't have the technical skills I am looking for, let alone the other skills my bosses would need. I usually talk with them til the 20/25 minute mark and thank them for coming and show them to the door.

They don't need to know that there were other interviewers lined up after. And the others are thankful the "guaranteed no's" don't get to them.