Wait until the first time you find your breeding female lying completely upside down. I mean, completely and totally upside down! Talk about stopping your heart.
Better yet, wait until you have a young breeding male disappear from his female's tub, and about the time you notice he is gone, you notice the female looks really swollen and is acting all funny. And you think you just witnessed cannibalism first hand. Only to discover the brat boy curled up on the heat tape behind the females tub a short while later!
I think these guys live to give us heart seizures.
Gale