Ancillary task photos

When taking ancillary task photos just to give me an idea for the layout I came across a health and safety problem. For my photos I am wanting to use a pitch black room with fairy lights all around myself and possibly the room, however it has just came to my attention that if I was to do this in school it would propose numerous health and safety precautions, something which I am going to have to discuss with the technician at school.