[SauntSolaire]

If I doctor performed a cancer screening on me, for free and without me asking, then yes — as a matter of courtesy I would still expect that doctor to tell me if he found cancer, rather than reading about it on his blog later.

[spotplay]

You are a person and they are a company. Please make sure to differentiate the two entity types when drawing parallels.

[catlikesshrimp]

That is legally allowed as part of studies, to which a patient must agree after being proposed. Otherwise, it is illegal.

[alt227]

> If I doctor performed a cancer screening on me, for free and without me asking

But that would never happen, so the point is moot.

[graemep]

I have known doctors and lawyers and many others to do work pro-bono

[alt227]

Without the patient or client asking?

[sorcix]

Well, yes. People have been diagnosed with skin cancer when a doctor saw a picture of them in an article and reached out to them.