so today was my physics exam(optics and optical devices) and this weird thing happened..

and before i get to tell you what happened , 2 months ago another set of examinations were going on and there is this attendance sheet that we have to fill up with a code provided on the answer sheet and signature. It has 2 columns(code and signature) and 5 rows(5 exams) and every student has his 5 rows unseparated by any space. So i filled the code and realized that i have filled it in the wrong area(last row of the guy before me). As it was first exam , i just cut it and thought its no big deal. In last exam ,this guy asks me "what have you done?" so i said its no big deal just write the code on the side. He said ok that was it(i thought)

now getting to what happened today, again it was our last exam , i got the attendance sheet and what do i see, this guy ahead of me filled up the code in my area and cut it. At first i thought ok maybe he was mistaken but then i realised that this is our last exam and we already have 4 signatures so how could he not see the difference between the signatures.
So he did that on purpose?
what kind of moron does that?
well maybe he felt delighted by doing this. idk too much weird for one day.