In this article, researchers described dangerous situations that might occur between a child and a social robot as a result of difficult activities. They then quantified the level of damage based on the seriousness indices for one of the challenging habits (i.e. throwing of objects). The findings revealed that the average harm levels dependent on the chosen severity indexes were comparatively low compared to their respective thresholds.
Link: https://link.springer.com/article/10.1007/s12369-018-0494-3