So I had a 2 hour exam last summer (at Aston), and during the last 20 minutes or so of the exam I started to *really* need the toilet.
I put up my hand and asked the invigilator if I could go, but he said "no, you can't leave in the last 30 minutes of the exam, you should have gone before".
I explained that it's impossible to predict bodily movements like that, and I wasn't sure if I could hold it for another 20 minutes. He said "well you're not going anyway" and walked off before I could say anything else. I held it in, just, and by the end I was breaking a sweat!
This seems to seriously violate human rights? There were plenty of invigilators on hand who could've gone with me. Are there any rules regarding this kind of thing that I could use if the situation ever arises again?