diff --git a/include/trick/IPPython.hh b/include/trick/IPPython.hh
index 57378123..72c429f2 100644
--- a/include/trick/IPPython.hh
+++ b/include/trick/IPPython.hh
@@ -36,7 +36,8 @@ namespace Trick {
             /** Returned value from event condition evaluation.\n */
             int return_val ;                              /**< trick_io(**) trick_units(--) */
 
-            /** Input processor mutex for protection for var server and event processing.\n */ pthread_mutex_t ip_mutex;                     /**< trick_io(**) trick_units(--) */
+            /** Input processor mutex for protection for var server and event processing.\n */
+            pthread_mutex_t ip_mutex;                     /**< trick_io(**) trick_units(--) */
 
             /**
              @brief Constructor.
@@ -48,6 +49,16 @@ namespace Trick {
             */
             void get_TMM_named_variables() ;
 
+            /**
+             @brief Get the status of the units conversion message flag
+            */
+            bool get_units_conversion_msgs() ;
+
+            /**
+             @brief Setting to see units conversions warnings
+            */
+            void shoot_the_units_conversion_messenger(bool onoff) ;
+
             /**
              @brief Initialize and run the Python input processor on the user input file.
             */
@@ -75,6 +86,11 @@ namespace Trick {
              @return always 0
             */
             int restart() ;
+
+        protected :
+            /** false = see units conversion messages, true = head in sand */
+            bool units_conversion_msgs ;
+
     } ;
 
 }
@@ -82,6 +98,12 @@ namespace Trick {
 extern "C" {
 //SWIG generated routine.
 void init_swig_modules(void) ;
+
+/* Call this if you you refuse to fix your units problems and want to shoot the messenger instead */
+void shoot_the_units_conversion_messenger() ;
+void revive_the_units_conversion_messenger() ;
+
+int check_units_conversion_messenger_for_signs_of_life() ;
 }
 
 #endif
diff --git a/trick_source/sim_services/InputProcessor/IPPython.cpp b/trick_source/sim_services/InputProcessor/IPPython.cpp
index 4d2fd02f..5217afe6 100644
--- a/trick_source/sim_services/InputProcessor/IPPython.cpp
+++ b/trick_source/sim_services/InputProcessor/IPPython.cpp
@@ -25,8 +25,7 @@
 Trick::IPPython * the_pip ;
 
 //Constructor
-Trick::IPPython::IPPython() : Trick::InputProcessor::InputProcessor() {
-
+Trick::IPPython::IPPython() : Trick::InputProcessor::InputProcessor() , units_conversion_msgs(true) {
     the_pip = this ;
     return ;
 }
@@ -67,6 +66,14 @@ void Trick::IPPython::get_TMM_named_variables() {
     }
 }
 
+bool Trick::IPPython::get_units_conversion_msgs() {
+    return units_conversion_msgs ;
+}
+
+void Trick::IPPython::shoot_the_units_conversion_messenger(bool onoff) {
+    units_conversion_msgs = !onoff ;
+}
+
 //Initialize and run the Python input processor on the user input file.
 int Trick::IPPython::init() {
     /** @par Detailed Design: */
@@ -193,3 +200,14 @@ int Trick::IPPython::shutdown() {
     return(0) ;
 }
 
+void shoot_the_units_conversion_messenger() {
+    the_pip->shoot_the_units_conversion_messenger(true) ;
+}
+
+void revive_the_units_conversion_messenger() {
+    the_pip->shoot_the_units_conversion_messenger(false) ;
+}
+
+int check_units_conversion_messenger_for_signs_of_life() {
+    return the_pip->get_units_conversion_msgs() ;
+}
diff --git a/trick_source/trick_swig/units_attach.i b/trick_source/trick_swig/units_attach.i
index 6dde6ecb..bcb01ad2 100644
--- a/trick_source/trick_swig/units_attach.i
+++ b/trick_source/trick_swig/units_attach.i
@@ -9,6 +9,7 @@
 #include <udunits2.h>
 #include "trick/swig/swig_double.hh"
 #include "trick/map_trick_units_to_udunits.hh"
+#include "trick/IPPython.hh"
 
 %}
 
@@ -50,8 +51,10 @@ PyObject * attach_units(PyObject * in_units_obj , PyObject * in_object) {
                 line_no = PyFrame_GetLineNumber(tstate->frame) ;
 #endif
             }
-            std::cout << "\033[33mUnits converted from [" << in_units << "] to [" << new_units << "] "
-             << file_name << ":" << line_no << "\033[0m" << std::endl ;
+            if ( check_units_conversion_messenger_for_signs_of_life() ) {
+                std::cout << "\033[33mUnits converted from [" << in_units << "] to [" << new_units << "] "
+                 << file_name << ":" << line_no << "\033[0m" << std::endl ;
+            }
             in_units = new_units ;
         }
     }