To the restaurant

Today I went to the restaurant.
I saw there is WIFI service.
So I ask for the password.
The waitress told me eat first.
So I place my orders.
After eating I ask again for the password and again she told me eat first. Feeling frustrated, again I order black coffee.
After drinking again I ask for the password. They told me eat first.
I then angrily ask the restaurant manager for the password.
He replied eat first.
Before I wanted to explode,
I finally saw a sign show WIFI password "eat first".