In all my years of hitch hiking, I never lost my towel. One strag saw that I had my towel and invited me to join in their family vacation because they were on their way to spend two weeks at a naturist resort. Yeah, I'm a hoopy frood that always knows where his towel is.
I do recommend that, before milking a Ravenous Bugblatter Beast of Traal, make sure that you have your towel securely wrapped around your head.