Unix: You shoot yourself in the foot.
DOS: You keep running up against the one-bullet barrier.
MS-Windows: The gun blows up in your hand.
MS WindowsNT: The gun is so huge and unwieldy that you have to keep swapping it from one hand to the other.
OS/2: The gun and the bullet aren't speaking to each other any more.
Mac Finder: It's easy to shoot yourself in the foot -- just point and shoot.
AIX: You can shoot yourself in the foot with either a .38 or a .45.
IRIX: The Terminator shoots you in the foot. A T-Rex bites your other foot.
SVR4: The gun isn't compatible with your foot.
Minix: You learn how to shoot yourself in the foot with a Saturday Night Special.
Linux: Generous programmers from around the world all join forces to help you shoot yourself in the foot for free.
HURD: You'll be able to shoot yourself in the foot Real Soon Now.
VM/CMS: IBM shoots you in the foot.
VMS: ambiguous: supply more toes.
Amiga-DOS: The gun works pretty well, except that few people use one and it's impossible to find bullets.
Mach: The bullets work pretty well, but they don't make guns for it any more.
Cray: You shoot yourself in the foot with an Uzi.
MasPar: You shoot all of your friends' feet simultaneously.