diff --git a/bandwidthSim.py b/bandwidthSim.py
index 840f783..6eb15c1 100644
--- a/bandwidthSim.py
+++ b/bandwidthSim.py
@@ -2,38 +2,47 @@ import random
 import time
 
 class Config:
-
     def __init__(self):
         self.networkSize = 100
         self.networkDegree = 8
         self.badBoy = 66
-        self.builders = [12, 26]
+        self.builders = [12, 26, 54, 78, 98]
         self.nbSlots = 10
 
 class Node:
-
     def __init__(self, config):
         self.peers = []
+        self.poisoned = 0
         self.speed = random.randint(0, 10)
         self.networkDegree = config.networkDegree
         self.networkSize = config.networkSize
         for i in range(self.networkDegree):
             self.peers.append(random.randint(0, self.networkSize-1))
 
-def executeSlot(config, nodes):
 
+def pickBuilder(config):
+    nbBuilders = len(config.builders)
+    builder = random.randint(0, nbBuilders-1)
+    return builder
+
+def executeSlot(config, nodes):
     pastBorder = []
     currentBorder = []
-    for b in config.builders:
-        currentBorder.append(b)
+    currentBorder.append(pickBuilder(config))
     while(True):
         #print("Current border size: " + str(len(currentBorder)))
         #print("Past border size: " + str(len(pastBorder)))
         #print("Nodes size: " + str(len(nodes)))
         for nodeID in currentBorder:
+            if nodeID == config.badBoy:
+                nodes[nodeID].poisoned = 1
             for peer in nodes[nodeID].peers:
                 if peer not in pastBorder and peer not in currentBorder:
                     currentBorder.append(peer)
+                    if nodeID == config.badBoy:
+                        print("Badboy")
+                    if nodes[nodeID].poisoned == 1:
+                        nodes[peer].poisoned = 1
             pastBorder.append(nodeID)
             currentBorder.remove(nodeID)
         if len(pastBorder) == len(nodes):
@@ -49,11 +58,27 @@ def sim():
     for i in range(config.networkSize):
         nodes.append(Node(config))
 
-    for i in range(config.networkSize):
-        print("My speed is "+ str(nodes[i].speed))
-        print("My peers are "+ str(nodes[i].peers))
-
     for slot in range(config.nbSlots):
+        # Slot starts with noone poisoned
+        for n in range(config.networkSize):
+            nodes[n].poisoned = 0
+
+        # Execute slot
         executeSlot(config, nodes)
-        print("Slot finished: "+ str(slot))
+
+        # Coubnt poisoned nodes
+        pois = 0
+        for n in range(config.networkSize):
+            pois += nodes[n].poisoned
+
+        # Print results
+        print("Slot finished: "+ str(slot)+" posoned: "+ str(pois))
+
+    for i in range(config.networkSize):
+        print("Node ID " + str(i), end="")
+        print(" spped "+ str(nodes[i].speed), end="")
+        print(" poison: "+ str(nodes[i].poisoned), end="")
+        print(" My peers are "+ str(nodes[i].peers))
+
+
 sim()