1. Is it a gateway drug?

2. One college athlete recently called beer a gateway drug for young people.

3. Over the next year, instead of just kissing sitting up, I started kissing lying down (the gateway drug to sex).

4. Caffeine has a pronounced effect on Sheldon, even if he does consider it a gateway drug.

5. Think of it as a scourge; it's the closest thing to a gateway drug to procrastination to you.

6. And though watching porn isn't the same as seeking out real live sex, experts say the former can be a kind of gateway drug to the latter.

7. And the -- the worst symptom on this disease is what my friend, Tom Coburn, calls earmarking as a gateway drug, because it's a gateway. It's a gateway to out-of-control spending and corruption.