Few could accuse Peter Bier's engineering lectures of being boring.
When it comes to keeping students from nodding off, the Auckland University engineering science, maths and programming teaching fellow has more than a few tricks to transform a lecture theatre into live theatre.
And it frequently involves riding a unicycle and juggling, sometimes at the same time.
The self-confessed circus aficionado has found a way to combine his unusual leisure-time passion of unicycling and balancing acts with shaping the minds of the next generation of engineers.
With an office filled with hula hoops and a variety of juggling paraphernalia, the 37-year-old schedules a break midway through lectures with a quick performance from his repertoire of tricks.