TBL is correct.
The discipline on "THE INTERNATIONAL EMERGENCY FREQUENCY" also known as "GUARD" has escaped common sense, airmanship and maturity in this region but also in Europe where its just about as bad. Why any (supposed) "professional" would think making cat noises, burps, farts, Big Button Box sound effects is somehow smart or cool begs belief.
Every pilot worthy of the title "professional"will monitor this frequency...please do us all a favour and show the world how smart you are by shutting up!