Kristin Cavallari once caught an intruder in her bedroom

Speaking on her 'Let's Be Honest' podcast, she said: "My kids still do not know [this] to this day. That night I had [my son] Cam in the bed with me. Cam and I were sleeping. And I woke up to a man crawling on my bedroom floor.

"I was so out of it because obviously I had just woken up. d I go, 'What the f*** are you doing?' And this man stands up, runs out the door, and, you guys, he had a ski mask on, full black arms, black pants, the full thing. And I went 'Oh f***!"

The former 'Hills' star didn't even call for help in the moment because her son was in the bedroom with her and just had to rely on her "instincts" to get through the ordeal.

She said: "Because Cam was in the bed with me, I didn't yell. I didn't scream. You think in those moments that that's what you'd do, but your instincts just kick in. I honestly felt like I was in 'Mission Impossible'.

"Once I woke Jay up, then I got really nervous.

"Then I start [to get] like, really scared. I started shaking, and I was able to process then what just happened. But until that point, I was not scared. I was really calm. You just are running off of instinct.

"[Telling the kids] would really scare them. Long story short, he took all of the cash that we had in a backpack. We ended up getting it back. We found out who it was. It was the HVAC guy."