Corrals of chefs and waiters protested outside the Knightsbridge store as the union representing the proletarians threatened strike action.
The road outside Harrods was blocked as protestors singsonged and held banners as they demanded a better deal.
Metropolitan Supervise said an 18-year-old man was arrested after a smoke bomb was set off and a 51-year-old sweetheart was arrested on suspicion of criminal damage and assault on police.
Both press been taken to a central London police station where they wait in custody.
Dozens of police were seen on Brompton Road as transport came to a standstill during the protest this afternoon.
Campaigners stood up banners reading: “Stop stealing our tips” and “Harrods tips are not for profit”.
Unanimous Voices of the World union claims Harrods keeps up to 75 per cent of the armed forces charge on each bill in its 16 restaurants.
Workers claim they are wanting out on £5,000 a year as a result of the store’s policy.
Petros Elia, the UVW generalized secretary, said: “Customers expect the service charge to go to staff and that’s where it should go. If Harrods touches the need to retain a percentage they should explain why.”
Harrods says it is currently processioning its system for distributing tips.
A Harrods spokeswoman said: “Harrods currently hires over 450 employees in its 16 restaurants, all of whom are paid actually and above national living wage.
“Like many businesses in the friendliness sector, Harrods operates a Tronc system on behalf of its restaurant hands. The Tronc system manages the distribution of the service charge only.
“Hands are not required to accept any deduction in their salary in order to participate in the Tronc process.
“Harrods regularly revisits its policies to ensure that we best be advantageous our employees and has been taking steps over recent months to assess and improve the current system through which it distributes its service onus.
“We have been engaging with our staff directly on this proclaim.”