Dear Annie: I’ve been a big fan of your column ... soliciting” signs. For those who prefer not to be approached, signs like “no politics/religion” or “do not knock” are more effective ...

Dear Annie: I’ve been a big fan of your column ... soliciting” signs. For those who prefer not to be approached, signs like “no politics/religion” or “do not knock” are more effective ...

In it, he issues a grave warning for people who might want to be left alone at home and would prefer to ignore a knock ... not, don’t let your guard down. Even if the people outside your door ...