Not quite as gory as some of the others here. Out at this formerly, used as a studio but now just a transmitter building, building, it's not uncommon to find all sorts of critters inside. There is this well thing in the back , inside the building, which has about 6" of water in it all the time. There are at least two frogs living inside it. I've seen those frogs more times than I can count. Mice, yep, tons of those. I use glue pads to catch the dumber mice that don't know to avoid them, and they are effective at catching those garter snakes. However two weeks ago when I was out there, I looked down and there were two , not on the glue pad, under neath the AC unit. Still living and sitting there. In the FM tennant room, on the floor, one day I found this black lizard looking thing over by the tower light controller panel. I don't know what it was, but it was dead. I had to work near it to do the quarterly tower light system inspections. Glad it was dead! I've told the FM tennants about the snakes, etc., so they are aware. We also get a lot of birds inside the building, and I don't know where theyre coming in from. They never leave, though. I've had one dead squirrel too in there. All our TV equipment in the building is shut down now, but there is still a full power FM station in there, so the FM guys know about them. For rodent control, I use those green mice baits and glue pads. I don't know what else to call them, other than "mouse cookies". I also make sure I have a number of them near the generator, so the mice eat them and not the stator windings. (It is an outdoor generator in an enclosure)
I will post a picture of the black lizard thing when I get a chance.