I understand how you feel about Thin Lizzy. A WTF moment if ever.
I don't go to a show for the opening acts though. If they are good, all the better, but if they were ALL good I would have never had to lay eyes on Bon Jovi. Now that would be a memory I would gladly erase.
If Phil were still alive, I could see it, as they used to tour the same circuts in the UK long ago. That would have been cool, instead of lame.