Two teenagers have been arrested after accidentally leaving a backpack containing cannabis and thousands of dollars in cash outside a charity shop in New Zealand, police have told local media. A shop volunteer noticed a strong smell emanating from the backpack, which had been left in the donation area, and found several plastic bags of marijuana weighing 43.2g and NZ$3,700 ($2,200) in banknotes. The pair had left the bag outside the shop in the Southland region as they waited for a vehicle to be serviced on 18 February, New Zealand Police said in a statement. before returning to look for it in a state of agitation. Recreational cannabis use and selling the drug are illegal in New Zealand. Charity shop staff saw the bag outside the front door and thought it was just another donated item. "When the shop worker took the bag inside, they noticed that this particular donation had a distinctive pungent aroma," a police spokesperson told the New Zealand Herald.…