How to explain that 'bad' pot is now OK?

DEAR ABBY: Due to various anti-drug lectures he was exposed to at school, my 13-year-old son believes that marijuana is not only illegal, but also is very bad for you. He said it is poison.

My state has recently legalized marijuana and I am at a loss about how to explain to him that pot is no longer "that bad," as people partake of it in a responsible manner going forward. Any suggestions?

- Colorado Mom

DEAR MOM: Marijuana isn't poison, unless it was sprayed with a poisonous chemical before being harvested. The marijuana being sold to adults in the states where it is now legal has been carefully cultivated and harvested. Its use is not encouraged among teenagers, however, because research has shown it can impair brain development among young people.

Stress to your son that, like alcohol, marijuana can slow reaction time and impair judgment and memory, which is why it's illegal for minors to use it. Whether it will become legal across the nation is still an open question. If it's abused the way that alcohol sometimes is, smoking weed may also be harmful because, like any smoke, it poses a risk to the lungs.

DEAR ABBY: We live in a small town. My husband is friendly and outgoing and seems to know everyone. We can't go anywhere without running into someone he knows. Meals out that should be quiet affairs turn into social situations I do not want to be part of.

I have wracked my brain as to a polite response to people when they say, "Join us!" I don't want to join them. How do we politely decline their friendly offer?

- "Not Tonight" in North Carolina

DEAR "NOT TONIGHT": A polite way to refuse would be to say, "We'd love to do that another time, but it has been a long day and we just want to sit and be quiet." It wouldn't be considered rude unless you say it often.

If these people are friends, they should understand because not everyone is up for company all the time.