If there's one thing more embarrassing than having your mobile phone go off and disrupt a sporting event you're watching, it's got to be having your mobile phone go off and disrupt a sporting event you're taking part in.
Just ask French tennis ace Alize Cornet, this exact thing happened to her as she was taking on world number one Caroline Wozniacki at a recent WTA event in Bastad, Sweden.
To make matters worse, it was match point when the then mystery phone started ringing and Wozniacki looked around in a bid to identify the inconsiderate tennis fan before serving.
Then she realised it was her rival who'd left her phone on in her kit bag
at the side of the court and started laughing as Cornet sheepishly made her way to turn it off.