If we are not careful they will believe that they have obtained a certain amount of "Magical Ability" and go out and get their A$$3$ handed to them.
My main worry, and why I train the way I do.
One of my students was asked the other day:
"so what have you learned thats practical from your training"
"don't get into a fight you can't win. Make sure you have numbers and a weapon on your side. If possible run away".
Hearing that brought a big smile to my face.