Somewhere between the 4th and 5th block I found myself in desperate need for a break. So, dizzy and confused as i was, i clicked on the "end block"option, but i forgot to press "yes" in the "do you wan to have a break?" screen. There was no way to go back in the block, but when i returned from my break i realized that my break screen wasn t on, since i forgot to press"yes".
I this logic, theoretically it would be possible to go out during a block. However, there was videosurveillance of the exam, so i don't know whether someone from outside could see my screen or not. I guess i will be sent an "irregular behaviour" mark IF this was considered cheating(damn, if this happens, it s too bad i didn t actually cheat).
No problems with time here, either.