diff --git a/main.go b/main.go
index a888da09..ca6ffdb0 100644
--- a/main.go
+++ b/main.go
@@ -31,11 +31,11 @@ func main() {
 	sess.Register(modules.NewRestAPI(sess))
 
 	if err = sess.Start(); err != nil {
-		panic(err)
+		log.Fatal("%", err)
 	}
 
 	if err = sess.Run("events.stream on"); err != nil {
-		panic(err)
+		log.Fatal("%", err)
 	}
 
 	defer sess.Close()
@@ -44,21 +44,21 @@ func main() {
 		for _, cmd := range strings.Split(*sess.Options.Commands, ";") {
 			cmd = strings.Trim(cmd, "\r\n\t ")
 			if err = sess.Run(cmd); err != nil {
-				panic(err)
+				log.Fatal("%s", err)
 			}
 		}
 	}
 
 	if *sess.Options.Caplet != "" {
 		if err = sess.RunCaplet(*sess.Options.Caplet); err != nil {
-			panic(err)
+			log.Fatal("%s", err)
 		}
 	}
 
 	for sess.Active {
 		line, err := sess.ReadLine()
 		if err != nil {
-			panic(err)
+			log.Fatal("%s", err)
 		}
 
 		if line == "" || line[0] == '#' {
diff --git a/net/net.go b/net/net.go
index ac5a5e9a..757d1d60 100644
--- a/net/net.go
+++ b/net/net.go
@@ -47,6 +47,9 @@ func FindInterface(name string) (*Endpoint, error) {
 				}
 
 				if e != nil {
+					if len(e.HW) == 0 {
+						return nil, fmt.Errorf("Could not detect interface hardware address.")
+					}
 					return e, nil
 				}
 			}
diff --git a/session/events.go b/session/events.go
index a184019d..47891f9f 100644
--- a/session/events.go
+++ b/session/events.go
@@ -111,12 +111,15 @@ func (p *EventPool) Log(level int, format string, args ...interface{}) {
 		return
 	}
 
+	message := fmt.Sprintf(format, args)
+
 	p.Add("sys.log", LogMessage{
 		level,
-		fmt.Sprintf(format, args...),
+		message,
 	})
 
 	if level == FATAL {
+		fmt.Fprintf(os.Stderr, "%s\n", message)
 		os.Exit(1)
 	}
 }