The prince's patience was slipping.

So his power and patience have both slipped precipitously at the exact same time.

His lean face tightened and his patience slipped.

"The equipmpnt's scrambled-" he said, his patience slipping another notch.

Her patience slipped another notch.

Ben's patience slipped several notches despite his re- solve.

Zimyanin was finding that his patience was slipping from his control like sand through an hourglass.

Wick's patience slipped another notch, but he kept his voice even.

Her patience slipped a notch.

His patience slipped a notch.