Changes in the law in the 1960s brought about a boom of strip clubs in Soho with "fully nude" dancing and audience participation. Pubs were also used as venues, most particularly in the East End, with a concentration of such venues in the district of Shoreditch. This pub striptease seems mainly to have evolved from topless go-go dancing. Though often a target of local authority harassment, some of these pubs survive to the present day. A custom in these pubs is that the strippers walk round and collect money from customers in a beer jug before each individual performance. This custom appears to have originated in the late 1970s when topless go-go dancers first started collecting money from the audience as the fee for going "fully nude". Private dances of a more raunchy nature are sometimes available in a separate area of the pub.