Interviewing Etiquette

I've done my fair share of interviewing prospective candidates for
jobs. Sometimes it's a tough call. Other times, you know 5 minutes in
that the candidate speaks in waffle & gibberish, has none of the
skill, experience or competencies necessary to do the job & is totally
devoid of charisma, and the entire panel is thinking "How can we get
you out of here quickly?"

I suppose it would be disrespectful to mount a large gong in the
interview room & when the interview reaches the point beyond which
anymore is just too painful to endure, signal the end with a
reverberating "GOOOOONNNNNGGGGG!!!"

Would it?