Earlier, there was another Yuk King's piece exhibited in 1a, and it brought in a few domestic maids to wash the taxi as a performance during the opening and a rotating shift for them to be presence in the venue during the exhibition period.
I really do think it should be something illegal, breaking the existing laws. So wasn't the work taping into the reality as I hoped for? An unfortunately yes but no. From the little talk that I did with one of the maids, it seemed that the maids has not been assured that such an act wasn't illegal, and in seems they have not a clear understanding of the lawful consequences they might have to face (and bear by themselves) owe to this.

While I was misled by my own wishful thinking in the new work of Yuk King, they are however being put into a risk because of their good faith in their employer. I will perhaps look deeper into the law regulations over this case, yet also in hope without bringing any future lawful action against them.)

But from the general understanding:
Q: Can I ask my helper to work for another person or take up non-domestic duties?
A: No. It is an offence under the Immigration Ordinance to ask your helper to work for another person other than the employer named in his/her visa or to ask him/her to perform non-domestic duties. Employers found to have breached the Immigration Ordinance may face prosecution. (Fine of HK$50,000 and 2 years imprisonment)

Q: What should I do if my employer deploys me to work for another person or take up non-domestic duties ?
A: You should report the matter to the Investigation Division of the Immigration Department.
If a helper breaches the undertaking, he/she may not be allowed to work in Hong Kong again.