I'm walking the main sidewalk at POR one night, looking around at the loveliness (as best I can in the dark) and enjoying the peace and quiet. Suddenly there is a slimy sucky thing on my thigh. Immediately shrieked, while moving my leg and swatting at it. I feel it instantaeously off one thigh and on the other.
Now I'm on the sidewalk screaming, jumping around and swatting with both hands at both my legs.
Then it landed on my lower leg. I panicked, thinking it was another slimy sucky living thing and lost it completely. Screaming like a banshee, I start shaking my entire body, while moving around and trying to swat.
My heart was going a mile a minute. Still had no idea what was going on. Might as well have been aliens - all I knew was slimy sucky things were attacking me.
Finally it was gone and I noticed that one of those guys in the carts had pulled up and stopped. I'm still all wigging out and breathing heavily when I notice him...I was no longer screaming, but I couldn't talk.
"Frog?" he says.
"I dunno!? Something!?!. Slimy sucky things!!"
"Tree frog," he says, "We've got lots of them. Gotta watch out for those."
Well, thank-a-doodle-doo-you. NOW he tells me.
He did ask if I was OK, which I was. Just a little freaked.

I didn't even think to be embarrassed until I relayed this story to a friend of mine who laughed so hard she choked on her pop and then peed her pants while I acted out the motions. Then I got really embarrassed.
So, yeah, there are tree frogs. And, yeah, you should watch out for them. If you don't, guys in carts will think your nuts and your friends will become incontinent.