What do you believe to be the single worst sin humans can commit?

Child abuse.

1. Needless, deliberate torture of a sentient being
2. Using other people's money to fund their own oppression.
3. Using your own money to oppress other people.

I can't say because it's political, but there can be no sane excuse for that!

Pineapple on pizza comes second!

Murder, but pineapples on pizza is a close second.

That's a good question. I'd say murder because it's irreversible.

buying an Audi when a Mercedes is so much nicer.

Anger and hate are what put souls in hell.

Being a Yankees fan

incest