Only fools ignore the warnings before crossing the old bridge.

He fools himself into believing the old rumor.

Her constant foolings finally eroded the trust of her friends.

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

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

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

They fooled around with the outdated software until their boss noticed.

He was punished because he fooled about during the safety briefing.

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

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.