spontaneously

Then spontaneously one Christmas, while his partner was away visiting family, he went out and bought a pack of bloodhounds.

Acute infections normally clear up spontaneously in patients with an intact immune system.

“Electric vehicles are statistically less likely to catch fire spontaneously than an internal combustion engine vehicle.”

In his written submissions to the IPT, Mr Weatherby said: "The perpetrators were not unknowns who acted spontaneously or with a simplicity which gave little room for discovery."

The parcels then spontaneously burst into flames or blew up.