It turns out that gorillas are actually rather shy, and despite their more Hulk-like appearance, these peaceful giants have never ever killed a person.
When they attack, it’s usually because of human violence or because they feel threatened or startled.
After that, males will probably growl and perform bluff charges, in which they sprint directly toward the victim and halt only a meter away.
They are not the most vicious apes, but they are nevertheless fiercely powerful and capable of fighting among themselves.