Hillary could probably smell the Jim Beam whiskey on Joe’s breath and felt sorry for a fellow drinker.
It’s very easy to ‘escape’ from such an embrace, but it’s not a subtle gesture. Put your hands in a praying pose, quickly raise your hands straight up, then spread your arms apart as though making a Snow Angel. Only negative is you will draw attention to yourself and embarrass the hugger.
Or just knee sloJoe in the groin, if she can get her leg up that far without falling down.