Found this guy today. Not too many around here anymore and there is a reason.
If you have ever found an Altoids container that is a year old or so and you will immediately know why most people dislike finding them. Sure in theory they are this seemingly air tight container that easily can be converted into a nice small geocache. Heck it might even be considered recycling because you are re-using it. Sadly, what happens most of the time is you find a rusting, damp hunk of metal that is usually very difficult to open and immediately makes you feel like getting a tetanus shot after handling. They are not water tight no matter how much you paint the outside and they become a maintenance nightmare after a very short amount of time. So if you take advice from one who finds them - don't use them. There are alternatives that work a whole lot better and you don't have to worry about a child or adult for that matter getting cut on the rusty edges.
While we are at it lets discuss pill bottles. Great idea at the time - okay it's a bad idea. You heard it here first, bad, bad, bad and bad. They are screen doors in a submarine at best and unless you really like your log books extra soggy don't turn them loose on the geocaching world. We would really appreciate it.Signed,
The geocaching community at large.