Here’s a video of Fred Hassen and Darrel Hager with their dogs Rex (Belgian Maliniois) and Nikita (Bulldog X Pitbull) at the Midwest Police and Security Expo. Darrel Hager’s Pitbull Nikita does a lot of soft mouth fetching but can also demonstrate a hard bite on command. At the end of the video she is shown doing a soft fetch on his arm directly after an attack to show the level of comprehension of the different comands.