From the NannyMUD documentation

LAST CHANGE

2001-08-12

FUNCTION

NAME
        changed_soaked_hook - 


AVAILABILITY
	/obj/player

DESCRIPTION
	This function is called when ever the soak level is changed.

	ARGUMENTS

	changed_soaked_hook(
	  ({ Soak level,
	     Old soak level,
	     The change
	  }),
	  the player
	)


NOTE
	This can also be changed in drink_soft.


SEE ALSO
        drink_soft_hook in hooks/drink_soft_hook