The thing that will happen to you when you try to play 3R with your significant other/anybody else who is not a total Grognard (see below). Your opponent is soon becoming so bored/frustrated that (s)he starts to flip counters all over the board and at you. 'The Danger of Flip-Flop' often referred to in session reports means a skilled player might hit your eyes.
You are fairly safe from the dreaded Flip-Flop when playing against a Grognard. A Grognard is anybody so old he is not able to hit anything when flipping or throwing a counter.
The legal representatives of those many persons who tried to sue Avalon Hill because the 3R rules caused them unbearable headaches or because they were hit in the eye by a Flip-Flop.
Often-appearing typo for OUCH!!. This is what you cry when you are losing many units at once (there are lots of reasons in 3R why that can happen, including the Flip-Flop), or because you got hit in your eye.
In the original 3R you do not score points for hitting somebody with your counters. Players have long complained that this is unfair, so JPTR now has Hitpoints.
The Standard 2-1 Attack
What usually happens when playing 3R against two friends is they start both throwing counters at you. This is occurring so often it is considered the Standard. Some Grognards consider the 2-1 not safe enough and go for the 3-1.
Cautious Grognards wear this, together with a Helmet, when they expect lots of Standard Attacks.
Counter-and-Rules-Torture. This is how people from the scene refer to 3R.