This is what I get for relaxing my guard, she thought.

She did not, however, relax her guard for even a moment.

In your company, I knew she would relax her guard.

Because we're so used to them we may have relaxed our guard.

It'd be nice to know what was going on between them, but I couldn't find out for some while, not until they relaxed their guard.

Those outside the risk groups cannot in any way relax their guard.

By all rights, he should be safe, but he'd learned over the years never to relax his guard.

And so, relaxing her guard just a little, she followed him inside.

But he couldn't afford to relax his guard, not now.

He'd started to relax his guard and begun to feel almost.