The excessive phone bill

The phone bill was exceptionally high. The father called a meeting to discuss.

Dad, “This is unacceptable. I don’t use the home phone, I use my work phone.”

Mum, “Me too. I hardly use the home phone. I use my┬ácompany’s phone!”

Son, “I use my office mobile, I never use the home phone either.”

All of them shocked and together looked at the maid who’s patiently listening to them.

Maid, “What? So wee all use our work phones. What’s the BIG deal???”