Nicolette Olson knows that first hand, after having her iPhone 4 and other electronics stolen from her home in British Columbia, during her son's 19th birthday party last October.

家住加拿大英属哥伦比亚省的妮可莱特?奥尔森就深深明白这个道理。去年十月，在她儿子的19岁生日派对上，她的iPhone和一些其他的电子产品就被小偷席卷而走。