I have like a BUILT in clicker LMAO - I know it sounds crazy... but hear me out. lol
My son - now 20 was clicker trained LOL but back then I didnt know what I was doing! All I know is when I made 'this sound' my son STOPPED and stood at attention. It was and still is a family joke, Im still asked to make it.
Its like AhhhhhnnnnnnKKKKKK! Kind of growled.
The sound is ALWAYS immediately before a direct command ONLY: no - get - come - sit - no bark - no touch - stay near - no play.
Ahhhhhnnnkkk! No Bark!
Say it like you mean it! But whisper the command if you want - that doesnt matter a bit.
Try it! This noise has worked on all FOUR of my human boys and EVERY species of animal I have ever had (except my spur thigh tortoise - at 250 pds he does whatever he wants and it aint much lol).
Ill youtube the sound per PM request LOL. Im afraid I wont make it back to this thread so please PM me if you want me to make the noise on YouTube. lol
Any human can do it - simple and so very effective.

I know - I sound crazy!