Revert "Revert "[DNM] Updates firemanning, throwing stuff""

This reverts commit def4b38a46.

code/datums/components/riding.dm

@@ -392,3 +392,12 @@
 		if(rider in AM.buckled_mobs)
 			AM.unbuckle_mob(rider)
 	. = ..()
+
+/obj/item/riding_offhand/on_thrown(mob/living/carbon/user, atom/target)
+	if(rider == user)
+		return //Piggyback user.
+	user.unbuckle_mob(rider)
+	if(HAS_TRAIT(user, TRAIT_PACIFISM))
+		to_chat(user, span_notice("You gently let go of [rider]."))
+		return
+	return rider