diff --git a/shell/MongoJS.cpp b/shell/MongoJS.cpp
index d6d0b76dedc..cb1fbebcf16 100644
--- a/shell/MongoJS.cpp
+++ b/shell/MongoJS.cpp
@@ -75,6 +75,7 @@ Handle<Value> mongoInit(const Arguments& args){
         return v8::ThrowException( v8::String::New( "couldn't connect" ) );
     }
 
+    // NOTE I don't believe the conn object will ever be freed.
     args.This()->Set( CONN_STRING , External::New( conn ) );
     args.This()->Set( String::New( "slaveOk" ) , Boolean::New( false ) );
     
@@ -336,6 +337,7 @@ Handle<Value> mongoFind(const Arguments& args){
         v8::Function * cons = (v8::Function*)( *( mongo->Get( String::New( "internalCursor" ) ) ) );
         Local<v8::Object> c = cons->NewInstance();
         
+        // NOTE I don't believe the cursor object will ever be freed.
         c->Set( v8::String::New( "cursor" ) , External::New( cursor.release() ) );
         return c;
     }
diff --git a/shell/ShellUtils.cpp b/shell/ShellUtils.cpp
index 4403b09bca8..51fd650e9a1 100644
--- a/shell/ShellUtils.cpp
+++ b/shell/ShellUtils.cpp
@@ -233,7 +233,7 @@ extern v8::Handle< v8::Context > baseContext_;
 class JSThreadConfig {
 public:
     JSThreadConfig( const Arguments &args ) : started_(), done_() {
-        jsassert( args.Length() > 0, "need to sxpecify at least one argument to fork" );
+        jsassert( args.Length() > 0, "need at least one argument" );
         jsassert( args[ 0 ]->IsFunction(), "first argument must be a function" );
         Local< Function > f = Function::Cast( *args[ 0 ] );
         f_ = Persistent< Function >::New( f );
@@ -241,7 +241,6 @@ public:
             args_.push_back( Persistent< Value >::New( args[ i ] ) );
     }
     ~JSThreadConfig() {
-        cout << "goodbye" << endl;
         f_.Dispose();
         for( vector< Persistent< Value > >::iterator i = args_.begin(); i != args_.end(); ++i )
             i->Dispose();
@@ -294,7 +293,9 @@ private:
 
 Handle< Value > ThreadInit( const Arguments &args ) {
     Handle<Object> it = args.This();
-    // NOTE I believe the passed JSThreadConfig will never be freed.
+    // NOTE I believe the passed JSThreadConfig will never be freed.  If this
+    // policy is changed, JSThread may no longer be able to store JSThreadConfig
+    // by reference.
     it->Set( String::New( "_JSThreadConfig" ), External::New( new JSThreadConfig( args ) ) );
     return Undefined();
 }