When I was on active duty, on more than one occasion, I saw this phrase written somewhere in the classroom; no matter the subject.
"In a crisis situation, you will react in the way in which you have been trained."
The phrase applied if it was firearms, defensive tactics, or CPR. After I left the Corps, I applied the phrase to other training situations as well.
During firearms week in the academy, I made the recruits write that phrase across the front of their range notebooks in bold black marker. Every morning we recited that phrase to start the day, and every afternoon, we repeated it together to end the day.
On the last day, after shooting for qualification, I would have them take out their standard tip red marker, and draw a thin line through the word "been." Now the phrase has a slightly different meaning as we read it together for the last time.
"In a crisis situation, you will react in the way in which you have trained."
I remind the recruits that THEY now carry the burden of maintaining their skill sets.
There are open range days once a month, and the Department will provide 100 rounds of practice ammo every open range day for them to shoot. They are welcome to bring additional ammunition, and/or weapons to shoot. Either myself, or another instructor will be there to coach if requested, or they may shoot on their own.
In addition, they are encouraged to participate in the various local club matches to maintain their skills and the match pressure is known to lessen the stress they may experience during a crisis situation.
"In a crisis situation, you will react in the way that you have trained."
I also remind them, this applies to all the skills they have learned in the academy, and will learn during field training. The shame is how few took the time over the years to come to open range to practice, but then whined about low scores at semi annual requalifications.
(It was always the gun, the ammo, the new duty rig, the weather, lost my glasses, or the sun was in my eyes.).