diff --git a/app/helpers/welcome_helper.rb b/app/helpers/welcome_helper.rb
index 6579464d5..0412898b4 100644
--- a/app/helpers/welcome_helper.rb
+++ b/app/helpers/welcome_helper.rb
@@ -25,7 +25,7 @@ module WelcomeHelper
   end
 
   def calculate_image_path(recommended, image_default)
-    if recommended.try(:image) && recommended.image.present? && recommended.image.attachment.exists?
+    if recommended.respond_to?(:image) && recommended.image.present? && recommended.image.attachment.exists?
       recommended.image.attachment.send("url", :medium)
     elsif image_default.present?
       image_default
diff --git a/app/models/comment.rb b/app/models/comment.rb
index e80a5e048..4a8351577 100644
--- a/app/models/comment.rb
+++ b/app/models/comment.rb
@@ -120,7 +120,7 @@ class Comment < ApplicationRecord
   end
 
   def call_after_commented
-    commentable.try(:after_commented)
+    commentable.after_commented if commentable.respond_to?(:after_commented)
   end
 
   def self.body_max_length
diff --git a/app/models/concerns/notifiable.rb b/app/models/concerns/notifiable.rb
index aa7d4d3bc..d9ba2f914 100644
--- a/app/models/concerns/notifiable.rb
+++ b/app/models/concerns/notifiable.rb
@@ -29,8 +29,8 @@ module Notifiable
 
   def check_availability(resource)
     resource.present? &&
-      resource.try(:hidden_at).nil? &&
-      resource.try(:retired_at).nil?
+      !(resource.respond_to?(:hidden?) && resource.hidden?) &&
+      !(resource.respond_to?(:retired?) && resource.retired?)
   end
 
   def linkable_resource