Jimmy White scored his first ever Wembley win over Stephen Hendry at the seventh time of asking, but admitted feeling "embarrassed" by his long overdue success.
The Whirlwind had finished second best against the six times Masters champion for six matches and 14 years. However, he finally got it right, although his victory was marred by unsporting spectators in a noisy and partisan Conference Centre crowd.
Several rowdy White supporters did their best to put off Hendry, coughing as the seven times world champion was about to play crucial shots.
"Stephen is a total gentleman and I was embarrassed for him," said 41-year-old White, now just three wins away from becoming Masters champion for the first time since 1984. "He had done nothing wrong and didn't deserve that treatment.
"You cannot blame everyone but there are four or five who spoil it for the rest. There was one woman who never stopped talking the whole time. Even people round her were telling her to shut up - it wouldn't happen if there were a few ushers in the arena.
"Even if you are an idiot you don't want to get slung out," added White, who now plays Peter Ebdon or Australian Quinten Hann for a place in the semi-finals.