Reminds me of my TV repair days; 35 years ago:

Went to a house with a dead TV. Opened back and found fried rat in high voltage cage. Removed rat & replaced the Horiz output tube to fix. Women of house stepped out of living room while I made repairs. When she came back TV was working. She asked what was wrong. So I put the blown tube on top of TV and tell her this is what is bad & left her the opportunity to ask the most common customer question which is: "What cause it?" At this point I place the burnt rat on top of the TV & tell her "this did!"

Customer was horrified & really did not know what to say. Too embarrassed to admit their was a rat in her house. So I wrote bill with detailed description of repair which said: "traced problem to blown Horz output tube which was caused by rat shorting it to ground. Removed rat & replaced tube".