Staying faithful is deeply important to Sharon Osbourne.
The Talk co-host, who is reportedly divorcing Ozzy Osbourne after nearly 34 years of marriage following allegations the rocker cheated with celebrity hairstylist Michelle Pugh, has long been a vocal opponent of infidelity in marriage. In a throwback interview with ET's Nancy O'Dell from 2011, Sharon candidly addresses how she'd handle unfaithfulness in her own marriage.
"I was really, really disappointed at him for being so horribly disrespectful and deceitful," she said, addressing Arnold Schwarzenegger's past cheating scandal with his housekeeper. "To do that in your own home where your home is meant to be your haven, it's your safe ground, it's your security."
WATCH: A Timeline of Ozzy and Sharon Osbourne's Highest Highs and Lowest Lows in Their Decades-Long Marriage
And for what would happen if Ozzy was unfaithful, Sharon didn't mince words: "I'd chop his willy off," she graphically joked. "Arnold's willy would've been down that disposal unit spinning around."
Sharon also addressed the matter more recently. In light of the cheating allegations that led to Gavin Rossdale and Gwen Stefani ending their marriage after 12 years, the TV host said on The Talk, "It's horrible, horrible behavior. That pain, how could you just get rid of the pain."
WATCH: Ozzy Osbourne's Alleged Mistress, Michelle Pugh: Everything We Know About the Celebrity Hairstylist
"That pain would so deep inside you," she added. "It's unthinkable."
Sources tell ET that Ozzy had an affair Pugh, a colorist at Meche Salon in Beverly Hills, California. Ozzy, Sharon, and their daughters, Kelly and Aimee Osbourne are all clients of the salon.
WATCH: Sharon Osbourne Skips 'The Talk' as Ozzy's Alleged Affair Goes Public
While divorce reports broke over the weekend, Ozzy was spotted out in Los Angeles on Monday still wearing his wedding ring.
Watch the video below for more.