[PapaBear3625]

One problem is that some humans don't take hippos seriously. We know enough to be wary of lions. We know enough to not piss off bulls with sharp horns. But some people just think hippos are harmless.

Another factor is that many animals may be unaggressive as juveniles, but turn very aggressive at adolescence.

[Kartographer]

I don’t know, I’ve always taken my Mother-in-law very seriously.

[Clint N. Suhks]