diff --git a/rowers/dataprep.py b/rowers/dataprep.py
index e9658fbc..df2f033c 100644
--- a/rowers/dataprep.py
+++ b/rowers/dataprep.py
@@ -408,7 +408,7 @@ def filter_df(datadf, fieldname, value, largerthan=True):
 def join_workouts(r,ids,title='Joined Workout',
                   parent=None,
                   setprivate=False,
-                  forceunit='lbs'):
+                  forceunit='lbs',killparents=False):
 
     message = None
 
@@ -477,6 +477,10 @@ def join_workouts(r,ids,title='Joined Workout',
                                         dosmooth=False,
                                         consistencychecks=False)
 
+    if killparents:
+        for w in ws:
+            w.delete()
+
     return (id, message)
 
 
diff --git a/rowers/forms.py b/rowers/forms.py
index 46443563..98971e53 100644
--- a/rowers/forms.py
+++ b/rowers/forms.py
@@ -1091,6 +1091,8 @@ metricchoices = list(sorted(formaxlabels.items(), key = lambda x:x[1]))
 class WorkoutJoinParamForm(forms.Form):
     workout_name = forms.CharField(required = True, initial = 'Joined Workout')
     set_private = forms.BooleanField(initial=False, required = False)
+    killparents = forms.BooleanField(initial=False, required = False,
+                                     label='Delete original workouts')
 
 class FusionMetricChoiceForm(ModelForm):
     class Meta:
diff --git a/rowers/templates/workout_join_select.html b/rowers/templates/workout_join_select.html
index ab1035b1..73ccca7c 100644
--- a/rowers/templates/workout_join_select.html
+++ b/rowers/templates/workout_join_select.html
@@ -17,21 +17,21 @@
 <script src="https://code.jquery.com/jquery-1.9.1.min.js"></script>
 <script>
   $(function() {
-  
+
   // Get the form fields and hidden div
   var modality = $("#id_modality");
   var hidden = $("#id_waterboattype");
 
-  
+
   // Hide the fields.
-  // Use JS to do this in case the user doesn't have JS 
+  // Use JS to do this in case the user doesn't have JS
   // enabled.
 
   hidden.hide();
 
 
-  
-  // Setup an event listener for when the state of the 
+
+  // Setup an event listener for when the state of the
   // checkbox changes.
   modality.change(function() {
     // Check to see if the checkbox is checked.
@@ -45,10 +45,10 @@
   // Make sure that the hidden fields are indeed
   // hidden.
   hidden.hide();
-      
-      // You may also want to clear the value of the 
-      // hidden fields here. Just in case somebody 
-      // shows the fields, enters data to them and then 
+
+      // You may also want to clear the value of the
+      // hidden fields here. Just in case somebody
+      // shows the fields, enters data to them and then
       // unticks the checkbox.
       //
       // This would do the job:
@@ -60,12 +60,20 @@
 
   });
 
+$(document).ready(function(){
+	console.log('kill parents')
+	$("#id_killparents").change(function() {
+		if (this.checked) {
+			$("#id_killparentswarning").html("<p><em>Warning: Deleted workouts cannot be recovered</em></p>");
+	};
 
-
+});
+});
 </script>
 
 
 
+
 <h1>{{ team.name }} Glue Workouts</h1>
 
 <ul class="main-content">
@@ -76,7 +84,7 @@
       {% else %}
       <form id="searchform" action="/rowers/workouts-join-select/"
             method="get" accept-charset="utf-8">
-	{% endif %}    
+	{% endif %}
 	{{ searchform }}
 	<input type="submit" value="GO"></input>
       </form>
@@ -84,7 +92,7 @@
   <li class="grid_2 maxheight">
     <form enctype="multipart/form-data" action="/rowers/workouts-join/" method="post">
       {% if workouts %}
-  
+
       <input type="checkbox" onClick="toggle(this)" /> Toggle All<br/>
 
       <table width="100%" class="listtable">
@@ -97,10 +105,14 @@
   </li>
   <li class="grid_2">
     <p>Select two or more workouts on the left,
-      and press submit</p>
+      and press submit. Be careful with the "delete original workouts" option. Deleted
+		workouts cannot be recovered.</p>
     <table>
       {{ joinparamform.as_table }}
     </table>
+		<div id="id_killparentswarning">
+
+			</div>
     <p>
       {% csrf_token %}
       <input name='workoutselectform' type="submit" value="Submit">
@@ -127,6 +139,7 @@
 {% endblock %}
 
 
+
 {% block sidebar %}
 {% include 'menu_workouts.html' %}
 {% endblock %}
diff --git a/rowers/views/workoutviews.py b/rowers/views/workoutviews.py
index f0ecb3d8..7a0c6d3a 100644
--- a/rowers/views/workoutviews.py
+++ b/rowers/views/workoutviews.py
@@ -890,6 +890,7 @@ def workouts_join_view(request,userid=0):
         if form.is_valid() and paramform.is_valid():
             workout_name = paramform.cleaned_data['workout_name']
             set_private = paramform.cleaned_data['set_private']
+            killparents = paramform.cleaned_data['killparents']
 
             cd = form.cleaned_data
             workouts = cd['workouts']
@@ -899,7 +900,8 @@ def workouts_join_view(request,userid=0):
 
             id,message = dataprep.join_workouts(r,ids,
                                                 title=workout_name,
-                                                setprivate=set_private)
+                                                setprivate=set_private,
+                                                killparents=killparents)
 
             if message:
                 messages.error(request,message)