One of the few positive things to come out of the DLT case is that it should now be widely understood that to grab or seize someone in any physical way under the guise of humour or playfulness is completely unacceptable. And it should be understood that this behaviour is the first rung on the ladder of sexual assault.
Once, I was walking down the street when a group of men came up behind me. I didn't turn around. There was plenty of room on the pavement for them to pass by. But they didn't. They stopped behind me and one, suddenly, roughly and completely out of the blue, grabbed my jeans-clad bottom from behind and squeezed, pushing his fingers forwards and upwards towards my crotch.