All mammals cum in their pants
http://www.bbc.com/earth/story/20150529-sperm-has-evolved-to-stay-fresh
*(not sure why this link isn't working, the tech guy isn't here yet, it's just Casey... Anyway, copy paste it, worth a quick little read)*
"The idea of spontaneous ejaculations is going to occur in different mammals too," explains lead author Renee Firman of the University of Western Australia. The research is published in the Journal of Evolutionary Biology.
All these poor animals just willy-nilly cumming, (the U makes it so gross), in their furry little pants! If you listened to the first podcast you know I have some very clinical experience with this phenomena, I may even be an expert. But I didn't know mice were running around dropping loads solo whenever they weren't getting any. Crazy stuff. BTW why is science so shocked by this? Every dude knows that if you don't erupt the flesh volcano for a while then a wet dream is in your not too distant future. Sure we didn't have your fancy science words telling us why that happened, but we all knew, "gotta get that expired sperm out." If six graders know it then you should know it already, scientists.