Guns, pot, alcohol, spray paint or ice cream. There's nothing you can name that somebody won't use irresponsibly. The focus on specific items being a threat to the general public is misdirected.
The threat to the general public is the attitude that I'm more important than you are. My pleasure is more important that your health and welfare. I bear no personal responsibity for insult or injury to anyone else while I'm pursuing happiness. Oh...and lawyers.
