The 5.20pm train into Birmingham includes bum feeling, it is not even an optional extra.
Perhaps I should sue 'Virgin Trains' or even Richard Branson for my bum getting touched experience!
Now, there you have a worthy cause, he is even making you pay for it.
For the rest? It's all context. I've had a hand on my shoulder that made me want to take a shower for a week or so, to get clean again, I've had looks with a similar effect. I've had a colleague asking intimate questions in a creepy way. But, I've also laughed my ass off, when bumping buttocks with a colleague, or intensely hugged another colleague. And have discussed things about intimacy without anything creepy going on, and way more explicit. Innuendo can be fun, and it can be out of place. If it is fun, it often goes way beyond the non appreciated remarks.
Legislation wants it all to be precise and such. That is a problem. A handshake can be harassing, a massage of a back can be just what is needed.