[blam]

"I wonder why they call it a sandwich instead of a hamburger."

In some places/states (Texas for sure) hamburgers must be 100% beef to be called 'hamburgers.'
These whoppers, big mac's, big bob's, etc contain soy filler and other things...that's why they call them these other names.

[bgill]

So, that’s why they taste awful and do a number on my stomach.