17 And these signs shall follow them that believe; In my name shall they cast out devils; they shall speak with new tongues;
18 They shall take up serpents; and if they drink any deadly thing, it shall not hurt them; they shall lay hands on the sick, and they shall recover.
.........
19 Behold, I give unto you power to tread on serpents and scorpions, and over all the power of the enemy: and nothing shall by any means hurt you.
:^)
17: Many instances observed.
18: Instances recorded, including Book of Acts: Paul.
19: Many instances, observed and unobservable.
As to whether these kinds of outcomes are consistent with repeated tests, one must go to the Experimentor.