[techterrier]

or cigarettes?

[arethuza]

Or drugs?

[haugis]

Or coffee?

[senbrow]

The drug so popular no one thinks of it as a drug any more.

[mrguyorama]

"One of these things is not like the others..."

What are the harmful effects of a full blown coffee addiction? Headaches?

[direwolf20]

What are the effects of an LSD addiction? Oh you can't, because LSD is anti–addictive. But it's still schedule 1 while coffee is uncontrolled.

[yibg]

Or sugar?

[direwolf20]

Cigarettes are drugs