Yeah, some of those individually packaged ones you get from stores can be really bad! They sit and defrost on a shipment truck and then the employees just toss them back in the freezer. When you get them online direct from a distributor they ship right to you, and you can inspect the feeders yourself and let the company know if they defrosted in transit. The other option is find someone who produces them locally and will do the same thing, but in general,I don't trust those store bought ones without a lot of inspection, and even then there can be something wrong with it that I don't see or smell but the snake does, so I trust it's judgement if it's telling me "no, not that one."