I bought a loaf of bread some weeks ago, which the lady behind the counter explained was frozen (because it was leftover). This was okay for me. The bread was still frozen when I bought it and I let it defrost on the counter overnight.
Then we didn't eat all the bread (just about 50%) and I decided to put the leftover half back in the freezer (before it would spoil).
Now I'm wondering: Is it ok to rethaw and eat the bread? I know there are several threads/questions regarding freezing - thawing - refreezing, but they don't handle bread (which I would believe to act differently than i.e. meat).