Two shots if the rant is directed at Rock. Take an extra shot if Rock answers back in some fashion (no modifier if it somehow is a Crowning Moment of Whatever).
Two shots if the rant includes them talking about their Back Story (at least a mention). Take two more shots if this is a mention of the very moment that they were maddened into misanthropy.
Take an extra shot if the rant includes a threat to Rock. Take another shot if it's a death threat. Take another shot if the threat states or implies them hating Rock for being a (relatively) Wide-Eyed Idealist.
Take an extra shot if the rant at some point segues into blasphemy.
Take an extra shot if the rant goes on for at least a minute.