Viking FM radio host Alex Duffy decided to play a prank on co-host Emma Louise Jones during Friday morning's show, and it was a belter.
Alex managed to convince Emma they were live on air, then started reading out a list of naughty words you're definitely not allowed to say on the radio.
Needless to say, Emma started getting very worried and thought Alex was trying to kamikaze his own career. Luckily for both of them, they weren't actually broadcasting at the time.