This janitor clocked so much overtime that he took home $344,000 in a single year - but was allegedly caught out hiding in a closet for hours.
Liang Zhao Zhang earned a base salary of $79,803 ($US57,945) in 2015 for cleaning San Francisco's Powell Street station.
But once overtime was taken into account, his salary and benefits added up to a whopping $344,305 ($US250,000) - giving his earnings a boost of $264,1502 - revealed in public records released by Transparent California.
![What was high-earning janitor Zhao Zhang doing in this closet? Photo / KTVU](https://www.nzherald.co.nz/resizer/v2/WXW6EERBZ46AQFBCWN7RKNS5MU.jpg?auth=217a7b5e5ab0ba07dd642cb62c3d23d5f82d51e0bda059a0a50daf959055a105&width=16&height=10&quality=70&smart=true)
An investigation by local broadcaster KTVU found that Mr Zhang was paid for working 17 hours a day for 18 days in a row in July 2015, and clocked fulltime hours during his annual leave.