Perhaps a war would not be such a bad idea after all.

Not a bad idea to find out how the other half lives.

Really bad idea for the day- he was beginning to like her, too.

Going back for another look at the girl's house would've been a very bad idea.

What was a bad idea then is not a good one now.

Not a bad idea, but she might have thought of me.

Maybe being with him before his mom's party wasn't such a bad idea.

If that was the case, then playing one against the other might not be such a bad idea.

Maybe leaving the two of them alone together had been a bad idea.

Actually, he thought that might not be a bad idea.