A little known fact about Yuji is that he is actually a dive instructor, we just never see him in the water any more.
Yuji did his original dive course in Cairns AUS, then came to New Zealand and trained up to Instructor level.  He started servicing dive equipment professionally in 2001, and very quickly gained a reputation for high quality work.
Yuji moved to Auckland and Global Dive in 2010 where he quickly established himself as a popular member of the team, with staff and customers alike.

If customers need to bribe Yuji to get rush jobs done, it is good to know he doesn’t drink, but instead loves high quality Swiss or Belgium chocolates.