diff --git a/main.py b/main.py
index c989477..a423769 100644
--- a/main.py
+++ b/main.py
@@ -50,12 +50,16 @@ GPIO.setmode(GPIO.BCM)
 greenLed = 14
 redLed = 4
 
-bad = False
 
+# badCredentials = False
 GPIO.setup(greenLed, GPIO.OUT)
 GPIO.output(greenLed, GPIO.LOW)
 GPIO.setup(redLed, GPIO.OUT)
 GPIO.output(redLed, GPIO.LOW)
+def badCred():
+    print("Bad credential!")
+    # badCredentials = True
+    # time.sleep(2)
 class CliInteraction(UserInteraction):
     def prompt_up(self):
         print("\nTouch your authenticator device now...\n")
@@ -67,14 +71,10 @@ class CliInteraction(UserInteraction):
         print("User Verification required.")
         return True
 
-def badCred():
-    print("Bad credential!")
-    bad = True
-    # time.sleep(2)
 while True:
     # GPIO.output(14, GPIO.LOW)
     print("Waiting for device...")
-    bad = False
+    badCredentials = False
     while True:
         try:
             # GPIO.output(14, GPIO.LOW)
@@ -146,12 +146,14 @@ while True:
                 else:
                     print("No data found for AAGUID:", aaguid)
                     badCred()
+                    raise Exception
                     return None
 
                 # Close communication with the database
                 cur.close()
             except (Exception, psycopg2.DatabaseError) as error:
                 print(error)
+                raise Exception
             finally:
                 if conn is not None:
                     conn.close()
@@ -173,7 +175,7 @@ while True:
             pk_neg3 = aaguid_data["pk_neg3"]
             pickled = aaguid_data["pickled"]
 
-        if bad:
+        if badCredentials:
             raise Exception
 
         credentials = pickle.loads(pickled)