Nicolai saw his younger brother turn into a werewolf.

Terrified, he then walked outside, walked to the garden (the only way I was able to keep zombies away was with a gated garden), and did this.  Rather than passing out right in front of his brother.

Mind you, he’s not even a coward Sim (he’s unlucky, which is probably pretty close depending on the circumstances).  But still…wth.