Yes, you are right, it's a lizard.
I spelled "hillo monster" incorrectly. The correct spelling is "gilo monster". Those are also lizards, and their saliva is
poisonous, and they have short tails like yours. Your lizard looked like a gilo monster, but it could very well be just a regular lizard.
Thank you Mehrdad. I love animals, even lizards.
"So I was sitting in my cubicle today, and I realized, ever since I started working, every single day of my life has been worse than the day before it. So that means that every single day that you see me, that's on the worst day of my life."
--Peter Gibbons (Office Space)