The tool can generally be divided into those types?
Back in the day (I'm a dinosaur), the original distinction was wether or not you were seeking access to a single computer or a network (or Bulletin Board). At the time there was much discussion amongst the online community as to how a user could tell if he were logging onto someone's computer or a network of computers. Keep in mind that back then you traveled the wires entirely in text. There was no internet protocol, so you used other tools. When you reached your destination all you got was a screen to gain access to the site. (back then we would have said gain access to the data) The interface was the word login or logon. You typed your user name for the site if you had one or just typed Guest if you had never been there before. The guest password was usually blank or the word password. It became practice for welcome prompts to indicate that you were gaining access to a network if you were confronted with a login page, as you were logging into the existing network of computers, or a logon screen if you were logging onto someones computer. You must remember that the first contact you had with a site was simply the word to log in or on. What the site was about had to be determined by gaining access to the site and looking for the Readme file, unless you had been there before. It was all text.
Brass knuckles are illegal everywhere in the US. SAP/weighted gloves/biker gloves are only illegal in Mass, Cali and NY as far as I know. When I was researching pepper spray, I saw some on OKorder, but they looked kinda junky. Might want to try an Army/Navy surplus store?
Polyurethane foam is very good and has the best R rating. R7 per inch. A better product is Envirofoam, it is 90% soy based and 10% polyurethane. it has the same R value rating but does not off gas like polyurethane and the house can be used within one hour as opposed to 100% polyurethane which needs overnight to off gas.
