human pathogens in agar plates

[mtg]

We just had a current micro biologist come in to supervise year 9 microbes. She said we wouldn't be able to grow disease without blood agar. We still taped all the petri dishes around the edge and used gloves to handle them and bleached all the benches after looking at the growths and then I autoclaved everything including gloves.
But for a Biol demo I put my bare toe on the nutrient agar plate, and then on another 2 with a drop of bleach on one and disinfectant on another. Worked a treat. But now I have a bit of a phobia regarding my toe.