People just keep popping in, and Theseus is the only one to pop out again.

More details from the file kept popping into my head.

Thank you for starting the challenge and I'll keep popping in to read your reviews.

He was one who kept popping in and out; a hard man to follow.

Those pictures of her kept popping into his head and he would take his time looking at them.

Flashes of light, pain, and fear kept popping inside my head, making me feel a little crazy.

All next day he kept popping in to ask me questions about the dinner.

"He would keep popping in to see if all was well, which is very distracting, as I'm sure you know."

He's always open to what dancers offer, and images just keep popping out of you.

Many thanks to one and all, I'll keep popping in now and again to see what's going on.