I read somewhere that you can stop a giant python from constricting you by drinking alcohol. Somewhere else I read that you can pour an alcoholic beverage on a snake's head to stop him from eating you. Both posts cited that pythons hate alcohol.
So if you've had a couple of adult beverages would your python (of any persuasion) notice?
On a related note, has anybody seen their snake sort of recoil slightly after making contact when reaching out to flick its tongue on your skin (yes I know I'm really opening myself up here..). But, seriously, I've noticed varying reactions to this type of contact.