diff --git a/interface_segregation/bad/src/Bird.java b/interface_segregation/bad/src/Bird.java
index 512faf1..68fda42 100644
--- a/interface_segregation/bad/src/Bird.java
+++ b/interface_segregation/bad/src/Bird.java
@@ -2,6 +2,5 @@
  * Created by mrk on 4/7/14.
  */
 public interface Bird {
-    public void fly();
     public void molt();
 }
diff --git a/interface_segregation/bad/src/Eagle.java b/interface_segregation/bad/src/Eagle.java
index e06ae18..768f256 100644
--- a/interface_segregation/bad/src/Eagle.java
+++ b/interface_segregation/bad/src/Eagle.java
@@ -1,7 +1,7 @@
 /**
  * Created by mrk on 4/7/14.
  */
-public class Eagle implements Bird {
+public class Eagle implements Bird, FlyBird {
     String currentLocation;
     int numberOfFeathers;
 
diff --git a/interface_segregation/bad/src/FlyBird.java b/interface_segregation/bad/src/FlyBird.java
new file mode 100644
index 0000000..723ab46
--- /dev/null
+++ b/interface_segregation/bad/src/FlyBird.java
@@ -0,0 +1,4 @@
+
+public interface FlyBird {
+    public void fly();
+}
diff --git a/interface_segregation/bad/src/Penguin.java b/interface_segregation/bad/src/Penguin.java
index 81d89fa..a2e2f65 100644
--- a/interface_segregation/bad/src/Penguin.java
+++ b/interface_segregation/bad/src/Penguin.java
@@ -1,7 +1,7 @@
 /**
  * Created by mrk on 4/7/14.
  */
-public class Penguin implements Bird {
+public class Penguin implements Bird, SwimBird {
     String currentLocation;
     int numberOfFeathers;
 
@@ -13,10 +13,6 @@ public void molt() {
         this.numberOfFeathers -= 1;
     }
 
-    public void fly() {
-        throw new UnsupportedOperationException();
-    }
-
     public void swim() {
         this.currentLocation = "in the water";
     }
diff --git a/interface_segregation/bad/src/SwimBird.java b/interface_segregation/bad/src/SwimBird.java
new file mode 100644
index 0000000..d25da03
--- /dev/null
+++ b/interface_segregation/bad/src/SwimBird.java
@@ -0,0 +1,3 @@
+public interface Bird {
+    public void swim();
+}
diff --git a/liskov_substitution/bad/src/BedroomAdder.java b/liskov_substitution/bad/src/BedroomAdder.java
new file mode 100644
index 0000000..5116bc1
--- /dev/null
+++ b/liskov_substitution/bad/src/BedroomAdder.java
@@ -0,0 +1,5 @@
+public class BedroomAdder {
+	public void addBedroom(PenthouseSuite penthouse){
+		penthouse.numberOfBedrooms +=1;
+	}
+}
diff --git a/liskov_substitution/bad/src/PenthouseSuite.java b/liskov_substitution/bad/src/PenthouseSuite.java
index 5a19622..7fbcedc 100644
--- a/liskov_substitution/bad/src/PenthouseSuite.java
+++ b/liskov_substitution/bad/src/PenthouseSuite.java
@@ -1,7 +1,10 @@
 /**
  * Created by mrk on 4/8/14.
  */
-public class PenthouseSuite extends Apartment {
+public class PenthouseSuite {
+	int squareFootage;
+	int numberOfBedrooms;
+
     public PenthouseSuite() {
         this.numberOfBedrooms = 4;
     }
diff --git a/liskov_substitution/bad/src/Studio.java b/liskov_substitution/bad/src/Studio.java
index 60c9124..4ef0ab0 100644
--- a/liskov_substitution/bad/src/Studio.java
+++ b/liskov_substitution/bad/src/Studio.java
@@ -1,7 +1,10 @@
 /**
  * Created by mrk on 4/8/14.
  */
-public class Studio extends Apartment {
+public class Studio {
+	int squareFootage;
+	int numberOfRooms;
+
     public Studio() {
         this.numberOfBedrooms = 0;
     }