I bought a pair of sandals recently, not cheap, as I believe in paying for quality so that they will hopefully last a few years. However, I have been earing them in around the house and the left one makes a farty noise when I walk. It's really obvious and really flipping annoying. Am I going to look ridiculous is I take them back for a refund? Is this a justifiable reason to ask for my money back. They are fairly smart and i was hoping to wear them for work but I feel really self conscious because it sounds like I am bloody flatulent fiona when I walk about.