Recently a mtn lion went into a Colorado home thru an open bedroom door, killed one of the two dogs sleeping at the foot of the couples bed...
I remember reading about that. Leaving a sliding door open at night was a big mistake. Of course a bigger mistake is the fact these animals are losing their fear of humans since they are no longer hunted. Worse will be when these creatures develop a taste for humans.
I don’t know if the mountain lions are increasing around here. I hear them sometimes at night, but haven’t noticed much increase. The bears are sure increasing though!