Cruise control won't turn off

What is your question?

Twice when I went to brake for an intersection, the cruise control wouldn't turn off despite all my efforts to brake. The car just pushed harder, the harder I pushed on the brake pedal. Luckily, both times I switched the car into neutral and was able to come to a stop before getting into a crash. What happened? Is this a common complaint for a 95 Chevy Blazer?