I've been doing casual work at a secondary school, doing exam invigilation. I've had no training on how to treat the students at all. Today there was a girl (16) who'd been in a car crash & has a bad back. During the exam she asked to go out & stretch, and I went with her into the corridor. She said she was in pain, so on impulse I offered to massage her back. She said 'no' & looked a bit embarrassed, after all she doesn't know me. But I have a ds nearly her age & I often give his back a rub after sport. Now, with hindsight, I'm worried she might tell someone & it might get out of hand, they might think I'm a perv! Should I tell my boss? (A bit awkward.) What do you think?