Was it a game of Show and tell? What was this teacher thinking?

A kindergarten teacher from Sola, Norway let kids touch and taste her blood. She has subsequently been fired. She brought the blood to school from home.

She apparently had a blood sample taken earlier that day. In class she poured it out on a plate for the kids to see. Some kids and to touch it and she let them. The tasting came when the kids asked what to do with the blood on their fingers. When she put her finger in her mouth, they did the same. She is being tested for HIV and other potential risks. Results have not been returned yet.

One more time, what was she thinking?