Once you have kids, you'll understand it's very normal. As parents, the biggest concern is how reliable the baby sitter is. Too many horrible stories about babies being abused by the baby sitter. By having you as baby sitter, he won't have to stress about baby abuse. You are really doing him a favor in this case.
That is very normal. When I was in graduate school. My adviser and his wife let me or other graduate students (Americans) baby-sit their cats when they were out of town. They paid us good money. ($200 per week). Taking money will make both sides feel comfortable actually.
【在 u**l 的大作中提到】 : That is very normal. When I was in graduate school. My adviser and his : wife let me or other graduate students (Americans) baby-sit their cats when : they were out of town. They paid us good money. ($200 per week). Taking : money will make both sides feel comfortable actually.