In Act 4, scene 1 of "A Midsummer night's Dream", Bottom is taking advantage of fairies suddenly waiting on him, and gives orders to 4 fairies. He asks a fairy anmed Peaseblossem to scratch his head, and another fairy named Cobweb to hunt a bee so he can have some honey. He then orders a fairy named Mustardseed to help Cobweb scratch his head, even though Cobweb went off to hunt, and Peaseblossom is scratching his head. You'd think Shakespeare would have seen that...