I remember my grandfather explaining safety matches to me, the reason all stick matches in the 1980's had that white dot on the tip. He told me about the time he was getting a spanking, and the box or tube of old strike-anywhere matches in his pocket caught fire! I wish I could remember the whole story now, as I imagine that if the spanking was for playing with matches (or lying), having his pants on fire probably didn't help his cause.
We used to buy and carry strike anywhere matches for scouts, and I still try to buy them when I can find them, but they're not as common to find anymore. Also, not as easy to light as the old ones, when you do find them.