Never, no matter how frugal or unpicky about laundering, throw ratty work jeans in with a towel or old sheet you've placed under an area where you have a hen that lays thin eggs that burst. Not even with bleach and hot water. You will not notice anything at first, but as the heat of the day progresses, you will regret your decision. Separate lights from darks if you choose, but ALWAYS fowl from human. Plus, you maybe could catch something...but I live on the edge.