Ursula (not her real name) kept the fact that she has HIV from her headteacher when she took the job of design and technology assistant, but did not want to lie and decided to reveal her status.
"I thought I should tell her in case I got injured," she said. "That's when things started to go wrong."
When blood was found on a staff toilet seat she threatened to fire whoever was responsible as "blood can carry disease".
"I knew she was referring to me when she was talking about these things, so I felt I couldn't stay at the school," Ursula said.
"I applied for another job but I had to put her as a referee. She called the school and told them I had HIV ... I was so angry.
"I tried to do the best thing by telling them I was HIV positive."
Ursula knows she will probably have to go through all this again. "In the end I got another job," she said. "I had to lie. I didn't tell them about my HIV status. Only the local authority knows. But I think I will have to tell the school at some stage."