fixes runtimes on mage hands regarding their targeting, as well as watersponge division by zero runtime

GainStation13/code/mechanics/water_sponge.dm

@@ -49,6 +49,9 @@
 		if(breath)
 			var/pressure = breath.return_pressure()
 			var/total_moles = breath.total_moles()
+			if (total_moles == 0)
+				return
+
 			#define PP_MOLES(X) ((X / total_moles) * pressure)
 			#define PP(air, gas) PP_MOLES(air.get_moles(gas))
 			var/gas_breathed = PP(breath,GAS_H2O)

GainStation13/code/mobs/chocoslime.dm

@@ -158,7 +158,7 @@
 
 /mob/living/simple_animal/hostile/fatten/CanAttack(atom/the_target)
 	var/mob/living/carbon/target = the_target
-	if(!istype(the_target)|| !check_target_prefs(target))
+	if(!istype(target)|| !check_target_prefs(target))
 		return FALSE
 
 	return ..()