That's a good call. I would have done the same. What was the tapping noise like - are you near trees? Urban? Rural?

Well, there are trees but at the same time where I live is more like suburban not quite urban but not quite rural, one side has a rural feel the other side has a urban feel. And the tapping noise sounded almost like when two sticks are smacked on each other

Deer? Bear? I have absolutely no idea about the wildlife of Texas, if i'm honest. Perhaps just a random stick tapping person out for a late walk?  Nah . . . nobody in America walks, surely?

Love your blog tho, keep up the good work!

Texas is a large state there are different wildlife across the state, we have the occasional bear, deer, mountain lion, opossum, skunk, armadillo, near where I live there are oryx that are usually found in Africa but due to a sheik presenting El Paso with a few as a gift, we have them. There are also mountain goats in the mountains.

No Sasquatch tho.  That's a good thing! (only joking - they don't exist)

"The way it was moving, I think it wasn't human but couldn't tell for sure"...

That was my ex-wife.

You did the right thing going back inside.

Lol either way I did the right thing but I found out what it was at work. One of our apes got out and apparently went a bit of ways from the zoo. But since the press didn't find out, nobody got hurt, so it's a low key thing and oddly enough the orangutan that adores me was found waiting outside its exhibit to be let back in.

Okay, that's the random-est sounding answer I've ever heard! Still, it just goes to show, you shouldn't always jump to the answer 'Aliens'...

Also, orang-utans are fantastic! 

Yep but it's the answer I'm going to accept since it has me the least afraid

Lol, seriously, the ape bit made me chuckle. Fear not, I was out one night viewing the moon as well funny enough when I saw this huge winged creature come flying down towards me, I jumped backwards and was intrigued when there was nothing there, the eyes can play some fantastic tricks. My main one now are Bats, I get loads of the things whizzing around me, and a couple of nights ago I could hear rustling in the bushes near me, as soon as it was time to go inside I turned the main light on and around on the ground were 5 frogs. I think astronomy is attracting a new audience.

Bats are greAt for pest control. As are frogs. There is an endangered species of bats that roost near El Paso, and I've seen a handful of them myself at night. First few times they've surprised me.