My son loves the bath more than anything but when it comes to washing his hair he freaks as soon as he seems me getting the bucket ready. He starts screaming no no no and tries to move away from me. I have tried the risk bucket with the flexible ends to mold to his head, a shower baseball hat looking thing, covering his eye with a wash cloth and using the shower head to rinse his hair out. What else can I do? I feel awful that he screams but I gotta wash his hair.