I never ever send food back. If I try something new and I dont like it I just figured it was my risk to take. But if I order a burger and there is something wrong with it I will bring it to the servers attention and not get anything else. My sister was a waitress for years, you dont want to know what happens in those kitchens. Ignorance is bliss in this situation, especially if you send food back and it is returned to you after a complaint.