I was leaving work, taking the elevator to the exit.
The elevator and everyone in it were perfectly normal, except there was a web, with a sort of arachnid-like scorpion living there. No one wanted to clean it up, so they just let him thrive there.
He had a tail with his poisonous stinger that was about 3 feet long. His web was right in the corner by the door, and he was perched on it waiting for someone to enter the elevator and get 'em.
Like I was saying, I was in the elevator leaving work, and as we were going to leave the elevator, we had to dodge the deadly stinger that was madly thrusting at all of us.
I went last of all, and just as I was leaving, I watched as the scorpion left his web and started chasing ME out into the hall, his stinger poised for the kill.