Many hairs were found in the MH...all were excluded as Danielles except for the 1 hair in the sink drain trap (which included other blonde hairs)..and 1 hair on the bathmat that matched mitochondrial..(could be BVD or offspring)...no hair of Danielle's was found in the shower drain (altho others were), etc. etc, etc.
So, if Westerfield wiped the windshield, a window, an outside mirror, or ANY PART of the OUTSIDE of the MH with a rag, then rinsed it out in the sink, he could have deposited 1 hair there from Danielle without her EVER HAVING BEEN IN, but HAVING BEEN NEAR (which he thought she was once) the MH!