He hadn't been such a bad penny after all, it seemed.

So he disappeared and turned up again like a bad penny.

And now, just like a bad penny, it turned up again.

"You keep showing up like a bad penny," I said.

She thought for a moment, and added, "What exactly is a bad penny anyway?"

Like bad pennies, or a case of the crabs that wouldn't go away.

You turn up like a bad penny every time there is evil about.

How can a politician with a record of failure keep turning up in Government like a bad penny?

The old bill that bounced back like a bad penny.

What was the old saying about the bad penny?