Kenny Kunene has some advice for Criselda Kananda: if you live in a glass house, don't throw stones.

This comes after the Metro FM radio personality took to Twitter to call the businessman a "sorry excuce for a man", because of his tell-all book. In the book, Kenny will reportedly reveal details about his affair with former Generations actress Sophie Ndaba. 

Speaking to ZAlebs, Kenny said: "I will let the insults pass this time around. But if she does it again, when I open my mouth, she will not want to get out of her house."

Kenny said he was surprised by Criselda's comments, especially as he respects her. "She has my numbers," he added. He said Criselda has reduced her intellect to a tabloid newspaper, referring to Daily Sun. "You call your friends, you don't go on Twitter," he added.