We called him Mad Max because of his hair-trigger temper, which could be set off by something as innocuous as a ringing telephone.
9 seconds sound clip from the The Wolf of Wall Street movie soundboard.
You can hear this line at 00:42:50 in the Blu-ray version of the movie.
Quote context
[...]
- Then he got depressed and killed himself three years later.
- Anyway, I hired my dad, Max, to maintain order as the Enforcer.
- Stratton's very own Gestapo.
- Who the fuck has the goddamn gall to call this house on a Tuesday night?
- Ooh, please, tell me something I don't know.
[...]