The Ironic Process 

ironic effects in psychological terms,[are] those that may occur when attempts to suppress a thought increase its accessibility to memory so that it is more likely to be brought to mind, especially under conditions of stress or increased mental load.


The irony of your situation when you witness “ironic effects of dietary supplements” when you considered the “ironic effect of the negative image,” say the antithesis of dietary supplements, which is, according to Wikipedia, smoking. 
The ironic effect of realization when juxtaposed with actual existence.
Just because you think I don’t see you doesn’t mean I’m not observing your every move and just waiting, patiently, to pay you back for your egregious abuse of good natured people.