Here we have a wild In-Joke in its natural habitat.
Payday 2 is basically Left 4 Dead for anarchists, if you've ever heard of it. One mission involves cooking meth with a mixture of the following ingredients: Hydrogen chlorideMuriatic acidCaustic soda
These are HCl, HCl, and NaOH, respectively.
This is where science steps in. HCl + NaOH ---> H2O + NaCl + heat
You cook very potent saltwater.
And the Mendozas love the shit so much, they usually backstab you and burn the intel, completely screwing over why Rats is a good mission to pick over Watchdogs or Firestater!
In all seriousness, I dont play Rats anymore because if the Pub group doesnt fuck up Day 1, the Mendozas or cops will fuck up Day 2, completely ruining your money outcome. Would rather do Watchdogs and spam LMG all day.