After checking the computer, the technician noticed the system files had been fooled with.

Stop fooling with my phone; you'll delete my photos.

Don't fool with the ancient machinery; you could seriously hurt yourself.

Only fools ignore the warnings before crossing the old bridge.

He fools himself into believing the old rumor.

She always fools with the settings on my computer and breaks something.

When he stubbornly repeated the same mistake at sixty, his daughter sighed and muttered, "there's no fool like an old fool," under her breath.

After hours of digging in the creek, she excitedly showed everyone a lump of fool's gold she had found.

Despite the rain delay, the flannelled fool strode onto the pitch and smiled at his teammates.

He laughed when he realized he had been an April fool after finding the fake spider on his keyboard.