The Ox, at Brunel University. Ear-bleeding loud, with a sax trying to perform brain surgery phonically on all attending. Even from outside, on leaving, the stomach was still being pounded by the low tones. Bleedin' awful.
The Stones, Hyde Park (Yes, the 'Butterfly' one...). King Crimson had already stolen the show, and goodness knows how many loooong, loooong minutes of Sympathy for the Devil (Hoo..! Hoo..!) one can endure. We walked across the park, but were tempted to run. (Hoo..! Hoo..!)
Hawkwind, Kingston College. A splendid concert until, in the hall heavily draped with long curtains over the windows, the pyrotechnics were set off. An immediate fire risk. Luckily it didn't go up in flames, as it happened, but we were already outside. A close shave.
More, probably, whenever the Edgar Broughton Band were trundled out (again...) on the concert stage. There's only so much suffering one should have to endure in this world.