Lost phone

[rebbonk]

When a customer left his cell phone in my store, I scrolled through his saved numbers, stopped at 'Mum' and pushed send.

His mother answered, and I told her what happened.

"Don't worry," she said, "I'll take care of it".

A few minutes later, the cell phone beeped.

Spoiler:

It was a text message from 'Mum'. "Martin" it read "you left your cell phone at the convenience store".

[Melisandre]

[dutchman]