How to force admin password?

Question

Network administration

There is a guest, how to force the "admin" to enter a password? what reason to come up with. The guest has limited rights.
I have zero reasons to force him, I hope for your ideas and suggestions . Thank you)

Answer 1

Answer 2

sit down and read works on social engineering and don't like people's brains. here you will not write works on this topic)

Answer 3

Do you name a criminal article or will you find it yourself? :)