I think "emm" must be a paranoid crack smoker..
The chances of having a KB are very slim to none with a glock.
Go buy a Hi-point or some other gun, etc. When it jams at the moment your life is being threatened, you will wish you kept the glock.
To Hi-point owners: no hate to Hi-point guns, I have the 995 9mm carbine, it jams a few times everytime I'm at the range. I love the carbine, it is fun but I just wouldn't fully trust my life to it.