I just took an exam today and was pressed for time towards the end. I realized I had messed up an answer with about 30 seconds left and I was in the middle of fixing it when my professor called time. I continued to work for another 10 seconds or so finishing up this problem.
To me, this seems miniscule, because my answer was probably wrong anyhow since I was so rushed, but I felt a little guilty about continuing to work after time was called. I wasn’t the only one who did it, and some even kept going longer than I did.
Was I wrong to do this/is this a serious offense or should I just put it past me?