Any mouse that tries to set up housekeeping in a transmitter---ZZZZAAAPPP-no more mousey!But makes a mess-the HV blows up the mouse and scatters the parts all over.And it trips the transmitter overload circuits.when they reset-most have 3 shot circuits-mouse is pretty well cooked or blown up.You have to use the paper towels or rags to clean up the parts.And for snakes that wrap themselves around AM transmitter modulation transformers--YUCH!-and the smell is unmistakable!The joys of being a transmitter repairman!One mouse I found that was under a platform that would be charged with HV-was in a "crawling" pose!Was stuck on the end of my vacuum hose nozzle.The mice have been letting up-now its the pollen and the hard shell bugs.These often get stuck in tube cooling fins-plastered in there by the blower under the tube to keep it cooled.For transmitter and site cleaning jobs-my favorite vac is the NSS M1 and use the inner paper bags.After a job can show how much stuff was picked up out of a clients transmitter!