Did anyone see the incident with William and Vafaei last night?
Vafaei walked off (lost) and didn't shake Williams' hand, so Williams tracked him down backstage and asked what it was about.
Apparently it was because when Williams missed the pink which ended up being the last shot of the match, he slapped his thigh in frustration because he thought Vafaei would come back and play for snookers so it was a bit careless.
Vafaei shook the ref's hand and walked off, god knows how he interpreted the gesture but in terms of overreactions it's right up there.
And I don't like defending Williams because he's far from my favourite player and we had a bit of a social media exchange a few years ago

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There was also a bizarre incident in the same frame where the balls were being replaced after a miss had been called. Williams picked up the white as a joke so the ref couldn't find it when he went back to baulk after replacing the pink and reds.
I think it was Olivier Marteel the ref, he got the white off Williams and told him that players aren't allowed to pick up any balls other than when it's their shot from the D. Cost him 7 penalty points!