Too bad about the cow but lucky for you your O.K. - cars & trucks can be fixed or replaced.
Reminds of years ago when I had to attend a driving school, seems the company I worked for (driving their car) would get an insurance cost break if we all went to the safe driving class. One of the major topics that I remembered very well was that if you were driving 55 mph at night you would not be able to stop in time with the headlight low beams ... in other words you would be overdriving your headlights. Wouldn't you guess that on the way home that night, driving 55 mph (speed limit), with the low beams on, there suddenly appeared before me, in my lane, a dog just standing there! I put that car on it's nose trying to come to a screaching halt, but ran over the dog! Geeze I felt bad! But there I was in the middle of nowhere, no houses around - so I drug the poor old dog off the road and drove on. Really bothered me. But I remember it very well and so if your ever behind me at night on some stretch of road and I can't use my brights, look for me doing about 45.