Humor from the Internet

A poster at my doctor’s office said I should contact your organization with questions about firearms injury prevention.
So, I went to your PSR [Physicians for Social Responsibility]
website and found your contact info. Here are my questions:

1) Is it safe to shoot .44 Special rounds in a revolver
chambered for the more modern .44 Remington Magnum
cartridge, or would this combination of ammunition/revolver
pose a hazard to the shooter?

2) Can a 38 Special cartridge be safely fired out of a gun
chambered in .357 Magnum?

3) What is the maximum overall length a 7.62×51
cartridge can be loaded to?

I’m really glad that a group like Physicians for Social
Responsibility is taking a keen interest in the safety of
gun owners. Looking forward to your answers soon!