Commentary on Pizzola, P. A., Roth, S., and De Forest, P. R., blood droplet dynamics--I. (J Forensic Sci, 31, (1), 36-49), and on Ristenbatt, R. R. and Shaler, R. C., A bloodstain pattern interpretation case involving an apparent 'stomping.' (J Forensic Sci, 40, (1), 139-145).