You people crack me up. If I had $1 for every statement on this thread that the author thought was a major siens bom I'd be like $10 richer.
Yes, I know that human blood has an exzyme known as peroxidase. Jeez.
My question could have been phrased as "is there peroxidase in period blood and how long does it stay active outside of the human body?"
I am seriously trying to harvest Smurfy's tampons but she's thwarting me quite well.
Hey I gotta occupy myself somehow during my no sexual activity week.