I played a game of the Free Stars demo with my son recently, and when your ship is close to exploding, an alert very similar to the Star Trek red alert sounds starts playing.

My son instantly said "it sounds like McDonalds", and I was a little shocked because the first place I heard that sound was on TV when a captain called for Red Alert. But for him, it's completely different: you hear the same sound used as an alarm behind the counter at McDonalds, and that's his association.

Just a short anecdote, I'm sad that McDonalds has co-opted that sound. I do wonder though, is that only in McDonalds in Australia, or is it in places like the US too?