Hoover said the Bureau had "much more important functions" than arresting bookmakers and gamblers. The town's numerous gamblers and prostitutes staffed several profitable ventures. Most of his work concerned London's criminal population of thieves, informers, gamblers and prostitutes. It was populated with the expected crowd of gamblers, gunslingers, and prostitutes. Many of them were inveterate gamblers and brawlers. Steven Sharpe III came from a long line of compulsive gamblers. It provided for age verification and protections for compulsive gamblers. Their appearances were valuable because the city would flood with wealthy gamblers. Chess professionals were viewed in the same light as professional gamblers. By 1900, most of the dance halls and gamblers were gone. First, reward processing seems to be less sensitive with problem gamblers. There may be financial gain through agreements with gamblers. It was the first known case of professional gamblers attempting to fix a professional sport. It also created limitations on disseminating the winning number out to the gamblers. Between 12 and 24% pathological gamblers attempt suicide.