Don't speak, I know what you're sayin'

The other day I was with a friend when his wife called. She had to call the house we were at in order to reach him because his cell phone was turned off. Since it wasn't his house phone, he didn't want to tie it up, so he told her he'd turn on his cell phone and call her back (then, get this, he actually did). He talked to her for a few minutes, then looked at his phone.

Him: No wonder my phone was off, my battery was dead. It just died again while I was talking to her.
Me: Do you want to borrow mine so you can call her back?
Him: No, that's alright. It died, but she wasn't saying anything important anyway.
Me: They never are.