英语口语错误:要不要上厕所

（下午，在会议室里，谈话正好告一段落，也到了休息时间。提姆主任请张先生享用咖啡、蛋糕及点心。）

Tim: They just brought in refreshments. Please help yourself.
茶点已经准备好了，请用。

Mr.Zhang: Thank you.
谢谢。

张先生想在吃茶点前先去厕所，所以当提姆主任说：

Tim: Would you like to refresh yourself?

以为提姆再次请他去享用refreshments(茶点)的张先生说：

Mr.Zhang: Thank you, but before that I would like to go to the rest room.
谢谢，但是我想先去洗手间。

Tim: Of course. This way.
请往这边。

（提姆露出诧异的神色一边说着，一边告诉张先生厕所的位置。）

【Note】
“Would you like to refresh yourself?”、“Would you like to wash your hands?”与“Would you like to go to the rest room?”是同样的意思，乃委婉地表示“你想不想上厕所？”之意。它另外还有“一鼓作气”的含意。