They ask inappropriate personal questions such as your family commitments, working school holidays because you have kids etc. They also ask questions about divisive issues taking place at the University. Interview questions are not consistent across applicants, and the HR representative almost always has no expertise in the area being interviewed for. It's a case study waiting to be written about how not to run an HR team/lead interviews.
Brown nose your way through the entire application process. Do not show any ambition or desire to advance, or eagerness for ongoing profressional development.
Showing any sign of ambition will be seen as a threat to the hiring manager's empire that they've spent many years building. You will probably be more qualified to do your prospective manager's role than they are, so they won't want to hire someone who can actually think for themselves and has recent relevant experience.
Play dumb, mention you like rugby lots, and pretend the university still delivers a "world famous student lifestyle" like it did in the 1980s and 1990s, even though today's reality is very different indeed, despite Marketing's attempt to continue the charade.
The best preparation would be to decline the interview because you have integrity.
I did not stay long enough to know the discounts available to staff as I was on a fixed term contract for the first semester.