Bug fixes: trial by fire (#4990)

-fixes #4697
-fixes #3913
-fixes #3216
-fixes #1854
-fixes #901
-fixes #1597
-fixes #4469
-fixes #1215
-fixes #3681
-fixes #3567

code/modules/mining/mine_items.dm

@@ -123,6 +123,10 @@
 	else
 		return
 
+	if(!istype(user.get_active_hand(), src))
+		user << "<span class='warning'>You need to be holding the [name] in your active hand.</span>"
+		return
+
 	if(wielded) //Trying to unwield it
 		unwield()
 		user << "<span class='notice'>You are now carrying the [initial(name)] with one hand.</span>"