Well I've been insulted quite heavily for my natural hair colour...
Want a longer story? Ok. In secondary school I took OCR Nationals in ICT, which meant in two years getting 4 GCSEs, and it was purely coursework.
We got to a point where there was a month left for work, and about 7 of the 18 of us had finished. By this time we were into study leave, so most other people just gave up to settle for what they achieved so far. The only people there by this point was me and my friend, who spent all the time secretly playing cave Story, since he'd given up and was only there because his parents forced him. I was the only person there by choice, wanting to finish work. I had over a week left and knew I'd finish with time left, and being there was completely my option, as had been demonstrated by others not showing up. One day I went in, did two hours, then decided "That's a lot of work, I'm going to call it a day".
On my way out my teacher asked where I was going. I said I was done for the day.
Then he went on a long rant about how I'll never achieve anything, fail to get a job since I obviously can't schedule, all because when he asked how long til I'd be done, I said I didn't know.
Do you think I'd bother coming in to do work if I thought I wouldn't be able to get it done? I explained that I knew I'd be done before the final deadline, I just couldn't say a day. So for specifically for me he moved the date forward, as if the proper deadline wasn't good enough. I felt awful, continued with my decision to go, and when got into my mum's car, broke into tears and felt bad for the rest of the day.
When school time actually resumed and one of my other friends who didn't show up went in to get his results, the teacher just thought it was fine that he couldn't be bothered.