When the impulse to make his offer had struck, he had honored it.

He knew her well enough to know that she responded to impulse, and some impulse, poorly thought out, must have struck her.

Later that afternoon an impulse struck her.

An impulse struck him then and he removed the helmet as she stood back, his face flushed with more than just the heat.

You can't just go running off when the impulse strikes you.

The impulse strikes me as a healthy one.

Rebounded, with the impulse of the air pressure in my bloated garments; struck again.

The impulse to consult the paranormal for guidance in life can, like gambling fever, strike people of any level of education, intelligence or social status.

The impulse struck as she zipped through the gates.

The same impulse had probably struck most of the people on the boat.