diff --git a/app/assets/javascripts/transactions.js b/app/assets/javascripts/transactions.js
index 6ad3fc0..9e62a7c 100644
--- a/app/assets/javascripts/transactions.js
+++ b/app/assets/javascripts/transactions.js
@@ -78,7 +78,7 @@ ready = function() {
     $(flash_success).removeClass("hidden");
     $(errors).addClass("hidden");
     $(form)[0].reset();
-    $('#transaction_creditor').select2('data', null);
+    $('#transaction_creditor').select2('val', null);
   }).on("ajax:error", function(xhr, status, error) {
     $(errors).removeClass("hidden");
     $(panel_ul).empty();
diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 9a598e9..9c9b8f2 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -11,7 +11,7 @@ class ApplicationController < ActionController::Base
   end
 
   def authenticate_user_or_client!
-    current_user || current_client || head(:unauthorized)
+    current_user || current_client || redirect_to(root_path, flash: { notice: "You have been redirected." })
   end
 
   def current_client
diff --git a/app/controllers/users_controller.rb b/app/controllers/users_controller.rb
index 4abbcdb..652bf22 100644
--- a/app/controllers/users_controller.rb
+++ b/app/controllers/users_controller.rb
@@ -7,7 +7,7 @@ class UsersController < ApplicationController
   load_and_authorize_resource except: :show
 
   def show
-    @user = User.find_by_name(params[:id]) || User.new
+    @user = User.find_or_create_by(name: params[:id])
     respond_to do |format|
       format.html { @transaction = Transaction.new }
       format.json { render json: @user }
diff --git a/app/views/transactions/_new.html.haml b/app/views/transactions/_new.html.haml
index d702df6..8738b17 100644
--- a/app/views/transactions/_new.html.haml
+++ b/app/views/transactions/_new.html.haml
@@ -14,5 +14,5 @@
       %span.glyphicon.glyphicon-euro
     = f.number_field :euros, value: amount(@transaction.amount),
         placeholder: "Bedrag", step: 0.01, min: (0.01 unless current_user.penning),
-        class: "form-control", size: 20, required: true
+        class: "form-control", size: 20, max: 100, required: true
   = f.submit "Send it!", class: "pure-button pure-button-primary btn"