Ruthless

Today I went out to a new property I took on recently to take pictures and put a "for rent" sign in the yard. As I was leaving, I met a man about 30 years old. He introduced himself as Ruben and asked about the house. I asked if he wanted to see the inside and he said not now. We were standing in the street in the driveway next to Ruben's house talking about the house and the terms of the lease.
All of a sudden, this small SUV came whipping into the driveway. We both jumped out of the way and the driver pulled into the garage and shut the door abruptly. She obviously saw us and damned near hit us.
I looked at Ruben with a shocked look on my face and he sort of shrugged and said "that's Ruthless". I said "Wow, she's kind of a bitch, huh?"
He says "No, she's a real bitch".
That was a pretty funny exchange and now I know to look out for "Ruthless".