The devil and unforgiveness

[Goldfinch]

Have any of you been told that your sickness might be cause by an unforgiving heart?

Yes. Forget about germ theory, everyone knows that if you're sick, it's because you're evil.

Careful, don't let anyone think you're a witch. They'll burn you. Unless you weigh more than a duck. Or something like that. (Monty Python) Watch out for medieval thinking, OP. That's all this is.