Federal law prohibits anyone convicted of a felony from owning a gun. Seems like kind of a good idea, no?

When shooting in the dark, it is a good idea to use a machine gun.

Paris is always a good idea.

It's a good idea. This way, it might be televised.

When you have a good idea, the money flows.

Beer. It always seems like such a good idea at the time, doesn't it? What's worse is beer seems like an even better idea after you've had some beer.