On Sunday, a knife-wielding robber entered a convenience store in Essex, England, and went behind the counter, where cashier Claire was in the middle of a transaction with a customer. A CCTV video shows Claire trapped behind the counter and the customer backing away. Claire told Total Essex that the robber was yelling at her to open the till. Then, things turn around as store manager Aman Singh Mann, 29, begins launching case after case of beer at the hooded intruder. The man fled, and has not yet been captured. Readers in the UK can call 101 with information about the attacker, who is described as between 20 and 30 years of age, and at least 5ft 9ins tall.