And it seemed a happy coincidence to him that her birthday should be coming along in the next week or so.

It's the happy coincidence of his ego and our needs.

I somehow doubt that your presence here is a happy coincidence.

I speak French and it's just, perhaps, a happy coincidence.

There has been something of a run on happy coincidence lately,' he observed.

It was just a happy coincidence, the officer told himself.

"Isn't it a happy coincidence we both had the evening off?"

"So our meeting here this morning wasn't just a happy coincidence."

"It was a happy coincidence that there were like minds on this," he said.

Then again, maybe it's all been a happy coincidence so far and will lead us astray in the long run.