A bit boring, and office admin-ish the job but still he should complete it properly.

I don't know. Maybe your HR or hiring person should be more selective?

But at least you tried even though it is not your responsibility.
I would also give 1 chance and if the performance and results are shiet. I will not bother anymore. 😁


When I did summer internships eons ago, they gave me job that new hire, and junior full time staff do. Not just admin jobs...