diff --git a/app/controllers/ajax/smile_controller.rb b/app/controllers/ajax/smile_controller.rb
index 3c1721ee..3f66b871 100644
--- a/app/controllers/ajax/smile_controller.rb
+++ b/app/controllers/ajax/smile_controller.rb
@@ -6,6 +6,10 @@ class Ajax::SmileController < AjaxController
 
     begin
       current_user.smile answer
+    rescue Errors::Base => e
+      @response[:status] = e.code
+      @response[:message] = e.locale_tag
+      return
     rescue => e
       Sentry.capture_exception(e)
       @response[:status] = :fail
@@ -44,6 +48,10 @@ class Ajax::SmileController < AjaxController
 
     begin
       current_user.smile_comment comment
+    rescue Errors::Base => e
+      @response[:status] = e.code
+      @response[:message] = e.locale_tag
+      return
     rescue => e
       Sentry.capture_exception(e)
       @response[:status] = :fail
diff --git a/lib/errors.rb b/lib/errors.rb
index 10cb15cd..af69f472 100644
--- a/lib/errors.rb
+++ b/lib/errors.rb
@@ -81,15 +81,19 @@ module Errors
   end
 
   class ReactingSelfBlockedOther < SelfBlockedOther
+    @locale_tag = "errors.self_blocked_other"
   end
 
   class ReactingOtherBlockedSelf < OtherBlockedSelf
+    @locale_tag = "errors.other_blocked_self"
   end
 
   class ListingSelfBlockedOther < SelfBlockedOther
+    @locale_tag = "errors.self_blocked_other"
   end
 
   class ListingOtherBlockedSelf < OtherBlockedSelf
+    @locale_tag = "errors.other_blocked_self"
   end
   # endregion
 end
diff --git a/spec/controllers/ajax/smile_controller_spec.rb b/spec/controllers/ajax/smile_controller_spec.rb
index 07a20de4..553b89cc 100644
--- a/spec/controllers/ajax/smile_controller_spec.rb
+++ b/spec/controllers/ajax/smile_controller_spec.rb
@@ -81,6 +81,54 @@ describe Ajax::SmileController, :ajax_controller, type: :controller do
 
       include_examples "returns the expected response"
     end
+
+    context "when blocked by the answer's author" do
+      let(:other_user) { FactoryBot.create(:user) }
+      let(:answer) { FactoryBot.create(:answer, user: other_user) }
+      let(:answer_id) { answer.id }
+
+      before do
+        other_user.block(user)
+      end
+
+      let(:expected_response) do
+        {
+          "success" => false,
+          "status" => "fail",
+          "message" => anything
+        }
+      end
+
+      it "does not create a smile" do
+        expect { subject }.not_to(change { Smile.count })
+      end
+
+      include_examples "returns the expected response"
+    end
+
+    context "when blocking the answer's author" do
+      let(:other_user) { FactoryBot.create(:user) }
+      let(:answer) { FactoryBot.create(:answer, user: user) }
+      let(:answer_id) { answer.id }
+
+      before do
+        user.block(other_user)
+      end
+
+      let(:expected_response) do
+        {
+          "success" => false,
+          "status" => "fail",
+          "message" => anything
+        }
+      end
+
+      it "does not create a smile" do
+        expect { subject }.not_to(change { Smile.count })
+      end
+
+      include_examples "returns the expected response"
+    end
   end
 
   describe "#destroy" do