My friend tried this with a bunch of his college mates, very drunk very dark and the cow did not tip over. It was a bull and it did not find this amusing.....
Yeah. That's sort of the hazard with alcohol, dark fields, and young fellers who might not know the difference...right away...
When I was young and VERY stupid, we were spotlighting deer. We had a sixpoint standing, looking into the light and I got out of the car, snuck around behind him and jumped on his back. My buddies were pissed because we were all drunk and had to take me to hospital for stitches in my thigh from his hooves, and stitches in my chest where he gored me. He was kinda startled.