Backstory: I caught my school (private secondary) grade 9 student cheating in examination (third terminal). So, I took his copy and told him to go out but he didn't and kept standing in his seat begging for me to give his copy back. He kept saying "Sorry Sir! I won't do it again" and I repeatedly said not to disturb others and go out, which he still did not. All this happened in his Compulsory Mathematics examination (3 hrs) just before 2nd hour.
I hold his copy for about 25 mins while he stood there misty-eyed, so I gave him his copy back and told him not to do that again. He thanked me and got back to writing. Even after this examination he said sorry for his behavior. As a teacher I haven't had such incident before as this is only my 2nd year teaching. Only few of my colleagues knows about this and I am thinking of telling about this incident in our meeting held after this examination is over.
Note: This is an internal examination taken by our school and not a final examination. We haven't had this type of issue in my school that I know of.
So, how should I have handled this situation? Should I have been more strict than I was in this particular case?
I am from Nepal.