Gamesmanship:
Should be conducted when I am at the table. Some would consider their little shark moves. Gamesmanship. My version of gshit is hit em with the kind of shots that send a message.
As ambassador I should confess to my failure.

When a weak player seeks to uh supply a small distraction that can be claimed as innocent. I let this player think it works..,his "Lucky" ritual has awarded him (another) shot. Just that my "luck" has left him ...shit. poops pooped again.
I am struggling to find, well my next technique is to....siddle alongside while chalking my cue a quiet speak . "You will stop the shit or I will make a scene." My look in the eyes let's them know I can take the escalator to the top.
I have only had one taker on the escalator ride. I chalk it up to a cultural different.
Watching pool players is like a scientist inspecting a petri dish.
My gamesmanship is mainly relegated to 8 ball and is a subtle one that happens only while I'm at the table. It fits into my PSR, the thinking part. Quickly analyze if the shot is easy enough to not miss. Quickly re-analyze the balls. If I'm not confident in making the ball and getting shape (even shape for a safety, or getting out depending on the rack) it's time for a safe that leaves them nothing and improves my chances. 8 ball is a game of improving your chances while eliminating those of your opponent.
The gamesmanship goes like this: Shoot at a ball and make it miss, turn it into a key ball or push it closer to the pocket as in 1P. If it's being pushed to a pocket I miss by 1/2", enough to show I was close, making an attempt, but they think "look at this guy, he sucks, he misses the easy shots!" (sometimes in league I'll hear his team mates whisper this to each other

) In one motion, as soon as I "notice" I missed, I'll let my head softly and slowly droop a tiny little bit, turn and walk back to my chair while the CB is still in motion. Opponent jumps up, chomping at the bit! The head droop is subtly, only enough for those watching an opponent's body language closely to even see it. Who says pool players can't act?
I can almost hear them think "ah this guy can't even make an easy shot but he gets all the rolls." Sometimes they say it out loud. That's when I know my gamesmanship has worked!
The fun part is, the "rolls" were planned and I know where the CB is. They get an extremely low chance heroic shot with no future, or enough of the ball to scratch, break out my problems or to initiate a safety battle with no real hope of a return. The key to a good safety is you have to leave them enough meat on the bones. Let them think there is a small chance at turning the tides and hope they bite on it. Some bite hard, some just nibble. The nibblers will soon bite if they make a couple trips to the table with nothing. 1P players do not bite like this as long as they realize the gamesmanship that is going on.
IMO the best safeties in a tough rack aren't lock up air tight safeties, they are those shots with just enough meat on the bones to temp. Where they can see enough of an object ball in order to make the trap invisible. Just simple little things that cut off angles, leave scratches, break out my problems, etc. Let them do the heavy lifting and chalk it up to bad rolls. This gets tougher to do if the opponent is in dead stroke, but an "open" safety leaving them nothing keeps them unaware for longer than being frozen to the back of a ball or something. That snaps them awake real quick. That type of lock up safety is for when you have the table run-able for certain and would like BIH to finish the rack.
Some players notice what is going on, others just think I have all the luck. I never let them know. The ones in the know are family or very close friends who qualify as family. I've had a few people ask me if I was playing safe or just getting lucky. I'll usually just offer a canned response like "well you know how pool goes, it's hard to tell what can happen one shot to the next."
I just wish I was good enough at 9B to use this same strategy, but those 9B players are a tricky bunch, they bring the heat when it's needed and often make an impossible shot entirely possible with okay shape.