Some of the items that I presently carry which cannot be bought in a store.

1. common sense.
2. strong legs.
3. knowlege of the area I'm riding in.

Here are the items that I might carry if necessary that can be bought with little or no difficulty. All of these are leagal, easy to obtain, easy to carry, and can be reached when needed;

1. a cell phone to report incidents of altercations, license numbers of cagers, request
assistance, and so on.
2. mace to fend off attackers at short range (animal or human).
3. a whistle or high pitched air horn. These will scare off animals such as dogs.