I know about blood. I've had bloody noses all my life. Blood is messy, and it is hard to clean up. I've had it virtually all over my bathroom, and all over myself. It takes a lot of work to clean up blood. You don't do it with a dry cloth in 30 or 40 seconds. It takes water, and a bit of work. If I get it on me, It takes a bit of effort with a wet rag to clean myself up.