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

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

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

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.

Despite knowing the risks, he was a fool to oneself when he invested his entire inheritance in a dubious scheme.

The village regarded him as a fool-saint, a man who dismissed possessions and sang hymns while sleeping under the market's eaves.

I April-fooled my coworkers with a fake memo about a surprise bonus.