Somewhere, at some point in time, some zoologist got his heart broken by a hippo and decided to convince humanity to stay the hell away from them. I, for one, am not going to fall for that conspiracy. Hippos just want hugs.
There was a show with Betty White where she was feeding a whole watermelon to a hippo she'd been friends with for over 20 years.
It loved her and came right up to her.
Possibly the Pet Set but I couldn't find the video all I could find was her feeding an alligator in Lake Placid (which I don't remember ever having watched).
Maybe I'm remembering everything wrong, but if not maybe someone else has that video or show in their back pocket and can help out.