In many parts of the country, you have to look out for rattlesnakes. While most rattlesnakes will leave you alone, if you stumble upon one by mistake, especially a young rattlesnake, you could risk getting attacked.
Yet in Texas, one cat looks surprisingly calm next to a fairly large rattlesnake. Apparently the rattlesnake either likes cats or recognizes that cats are superior creatures who deserve to have everyone obey their bidding. Perhaps the rattlesnake saw the cat bossing humans around and figured it better behave around the cat as well.