Is that to say you don't like handshakes either ? I am genuinely curious as I currently do a slight bow and look down to preempt a handshake from occurring which is just exacerbating the crisis of touch issue.

The shoulder shake was in lieu of a hand shake and it hopefully is reciprocated. People tend to be judged, often unfairly, by the quality of their handshake. And there are definitely people who use a firm and prolonged handshake as an opportunity to express dominance.