afraid of the consequences of an error during and attempt to re-do something

A person who doesn't realize they are transgender yet, or is in denial; an undeveloped transgender person. When they realize, it's referred to as the "egg cracking."

Millitary slang for someone scared of confronting the enemy. Like saying coward, only it's not irrational to be scared of red hot tumbling bullets that hit you before you even see the muzzle flash.

To be 'Gun Shy' is a military shooting term. It is the blinking of one's master eye (the eye one take's aim with behind the telescopic sight or 'naked' sights of a projectile weapon) simultaneously as the trigger is pulled. This involuntary action is a sign that one is as yet unable to take responsability for a round leaving ones weapon and killing someone. This is obviously unacceptable in a professional shooter, especially a sniper. One should never take eyes off target, and a closed eye is an eye that does not see a threat.

But aversion to killing is natural. Thankfully.

In most soldiers the condition of being 'gun shy' is capable of being overcome with the rationale that the enemy is a willing combatant and is a lethal threat to you, your comrades, and any innocent third-parties, and it is simply a case of 'you or them'.

When you can't go to the bathroom because someone else is around.

Reluctant to become involved in a relationship, especially a sexual one

A mental state usually affecting virgins where the complexity of a sexual situation makes it hard to have or hold and erection.