What is the worst beer for sale in the UK?

What is the worst beer you can think of in the UK, whether at the pub or at the shop?

I don't mean necessarily one that is objectively bad - I mean that beer that when someone brings it to your house party, you wish your friends never came; the beer that makes you wonder if water or Stella is a better option; the beer that elicits some plain sad feelings in you.

For me, it's any Brewdog beer. Nothing to do with the company's culture at all, I just think it's the most overhyped, tasteless crap for sale today. When I see cans of Hazy Jane as the only option in a fridge, I cry inside and can't wait to be done with it.