The former Prime Minister of Australia had the Governor General (a largely ceremonial role) secretly swear him in to multiple ministries without the knowledge of the incumbent minister, the parliament or the public. The Governor General didn’t publicise these appointments. The PM then used his new ministerial powers a couple of times.

The convention expected was the GG would announce these appointments, he didn’t and put out a statement when it was found out that literally said “oh yeah not my job sorry you thought it was”

https://www.gg.gov.au/about-governor-general/media/statement...