A pay toilet is a public toilet that requires the user to pay. It may be street furniture or be inside a building, e.g. a shopping mall, department store, or railway station. The reason for charging money is usually for the maintenance of the equipment. Paying to use a toilet can be traced back almost 2000 years, to the first century BCE. The charge is often collected by an attendant or by inserting coins into an automatic turnstile; in some freestanding toilets in the street, the fee is inserted into a slot by the door. Mechanical coin operated locks are also used. Some more high tech toilets accept card or contactless payments. Sometimes, a token can be used to enter a pay toilet without paying the charge. Some municipalities offer these tokens to residents with disabilities so these groups aren't discriminated against by the pay toilet. Some establishments such as cafés and restaurants offer tokens to their customers so they can use the toilets for free but other users must pay the relevant charge.