Oh, office lady, why would you want to talk on the phone in a public restroom? I don't even think your call was important. It sounded pointless and insipid, and your phone was turned up so loud I could hear the "ya ya wah ya ya ya ya ya wah wah blah yah" from the person on the other end.
I am not ashamed to admit I made as much noise as possible in the adjoining stall.