I was disappointed to see a rather stupid example of juxtaposition in Jet2's in-flight magazine on my way home from Portugal the other day. 
I tweeted about my disappointment and anger and Jet2 replied that they had passed onto my comments to the brochure team.  Then I got an update to say that all forms and references to captive animals are being removed from their brochures and magazine.  I don't believe that they directly sell trips (at least not online) so this is a good start!  Activism works!