Из треда про ножи. Скатились к метательному оружию.
Case: Government prohibits guns for self-defence, but you desperately need a gun.
Solution: Go Sakuya*.
*In case of low skill of knife-throwing try something resembling a brick or a plate. Broken 3,5'' HDD should be fine.
HDD Brick is highly effective on 5 meter range and useful even against riflemen. It's important that this kind of weapon doesn't need any kind of concealing rather than being put in pocket. Moreover, its possible to accuse offender for making you having to literally throw your precious data.
poisonous needles on every edge of your HDD. It is to note that a spare space allows to use syringes, so you can use HDD multiple times.
Also, you always can buy a broken or obsolete HDD for no more, than 5$ (or only 3$ in bulk) or just try to buy some as scrap on local recycling factory for some loose change since you will need only aluminum cases.
In USA, it is possible to buy obsolete or broken PCs in bulk for only 2$ each, so you can provide yourself with a good supply of HDDs from them, as well as lightweight FDDs and CD-ROM drives, which also may be turned into throw weapons or armors.
Also, you can use HDDs (as well as CD-ROM drives and FDDs as padding for anti-bayonet armor. Nornally, you simply need to get an utility vest and fill it with both 3,5 inch and 5,25 inch drives as pads.
HDD is not good as a melee weapon, though. However, you can make a low-cost knuckle with a 3,5 HDD, some scotch tape and some sponges for softing the knock power.
When buying HDDs for further producing self-defence weapon, remember - don't buy modern 2,5 inch drives since they are expencive, but lightweight. Also, HDDs from Western Digital are not good for needled types of HDD Brick.
WARNING: Don't use HDD as a hunting weapon on heavy game.
It is to note, that it is nearly impossible to use such a weapon when drunk, so it doesn't need any prohibition.