considering it ended with a bagel, the loser should have the decency to just say too good and suck it up.
i think the worst handshake i have ever seen was between radwanska and lisicki at wimbledon. it does highlight a bit of a difference between men's and women's tours, since there is no way two established male players would not have hugged it out after a match like that, but radwanska barely even looked at lisicki. really soured me on that brat.
Curiously enough, Lisicki did almost exactly the same handshake in her loss to Kerber a year before. Women aren't good sport it seems.