I have 4 cameras.
I sometimes review what's going on at night. I have them set to record all the time and flag for motion, but I just hit play and watch at 16x speed. At that speed I've learned what stuff looks like and will stop if I see something strange.
The other day I saw a glowing orb float the length of the trailer park. It looked like something was on the other side of the fence. turns out the glowing orb was a pair of glowing possum eyes. LOL.
So I get cats, possums and sometimes racoons. Never have seen any suspicious activity or anything.
One time I saw a huge cat walking on the roof of the autozone next door. I mean, I thought it was a mountain lion. I still don't know what it was. It was far away and at night, but you could see the silhouette. I couldn't really tell the scale, but it was way big. Not a house cat.