上次我都見到姐姐用买餸钱买coffee俾佢自己,而我提供俾嘅coffee仲有好多。我就同佢言講好appreciate her hard work and glad to offer coffee for her. if she don't like my coffee, she can buy coffee for herself but must within monthly budget I set for her. coffee钱唔多,但係一定要under僱主 control,如果一開始唔control, 姐姐会得寸進尺,越来越难搞。