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.