I mean hold your NOSE around horses!

Growing up in Texas, I've always heard "A fartin' horse never tires." but if that's true, then why are these horses sleeping?

I think someone fed these horses some hominy, maybe some pinto beans.  Those foods always did my ex that way after she fell asleep.

The next morning:  "Why did you sleep on the couch?"

"Oh, I was just having trouble falling asleep and didn't want to bother you." I'd tell her...that was better than admitting I didn't want to be asphyxiated in my own bed.  I used to think I'd bring home one of the "sour gas" (hydrogen sulfide) alarms from the drilling rig for those "noxious nights".