messages (Gtk-CRITICAL) flooding the terminal

I open a PDF document in evince, e.g.
s atlas_install.pdf
(I have the alias s='evince' in my .bashrc .)
I have also firefox running.
I switch between the applications using Ctrl Tab or using the mouse.
Steps to reproduce the bug:

1.) I have firefox on the foreground and the evince window with the PDF document on the background. Also the Gnome terminal (on the backgroud). The document was prepared using latex (pdflatex I guess).

2.) I go on the document (so it gets on the foreground). I perhaps scroll through its pages. Then I go on firefox, then click at the terminal, then on the document again and scroll through its pages.

3.) Finally I look at the terminal. It is messed by warnings like:

(evince:3378): Gtk-CRITICAL **: gtk_menu_button_get_popup: assertion 'GTK_IS_MENU_BUTTON (menu_button)' failed

(evince:3378): Gtk-CRITICAL **: gtk_widget_get_visible: assertion 'GTK_IS_WIDGET (widget)' failed

It is very annoying. Sometime the messages pops up with some delay and they interrupt commands which I am typing. Of course, the messages make it more difficult for me to read output from programs which I run on the command line (e.g. configure, make, etc).

Please note: developers perhaps think that people open documents using a mouse click on the document so that they do not see the messages. It is only partially true: lots of people open documents using the command line because it is simply much faster and much more efficient for them.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: evince 3.10.3-0ubuntu10
ProcVersionSignature: Ubuntu 3.13.0-18.38-generic 3.13.6
Uname: Linux 3.13.0-18-generic x86_64
ApportVersion: 2.13.3-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Mar 22 12:36:10 2014
InstallationDate: Installed on 2014-01-31 (50 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140130)
SourcePackage: evince
UpgradeStatus: No upgrade log present (probably fresh install)