Why is this Cow Laughing?

Their cheese is bon et bel. Their mascot is tres terrifiant.
Imagine you're enjoying an alpine meadow. Maniacal laughter erupts behind you. Turning around, you see a devil-red, floating cow head.
She looks deranged. Like she's ready to stomp your head and chew your brain for cud. Or watching you in a meat grinder. Perhaps you're slowly being lowered to drown in a vat of special sauce? Whatever she's up to, it's trouble
Or maybe it's not her fault.
In Victor Hugo's Le homme que rit, the protagonist always grins thanks to some wacko surgury his handlers subjected him to as a baby. Maybe the cow had the same operation. A nuetral expression-ectomy. That way the farmer doesn't feel bad about branding her or zapping her with a prod because she always looks happy. Either that or he wanted to scare the neighbors.