The Football Association: Respect The Technology - YouTube
If in doubt, use the glass jar!
There are other ways to deal with abusive behaviour on the pitch...
Our Respect robot standing up to bullies
Taking sideline technology to another level
Yamaha's SH Silent Piano being put through its paces by HJ Lim on top of a canal boat in East London
HJ Lim playing Rachmaninov on a Yamaha SH Silent Piano as dawn breaks along Regents Canal
HJ Lim shows off her incredible skill on the Yamaha SH Silent Piano whilst sailing on a canal boat in East London
HJ Lim playing the Yamaha SH Silent Piano as the sun rises over East London
Yamaha Silent Sessions presents: HJ Lim Performing extracts from Rachmaninov's Piano Concerto No.2