In this June 16, 2009, AP file photo, Tim Maikshilo holding open the mouth of one of his Holsteins in Coventry, Vt. Yogurt maker Stonyfield Farm wants its cows to burp less. It's for a noble cause: cutting down on the gases that contribute to global warming. Working with 15 Vermont farms to change cows' diets so they emit less methane, it has already reduced cow burping by as much as 18 percent. Why am I telling you all this? Today is National Cow Appreciation Day, even for those who burp & flatulate as much as ever. (AP Photo/Toby Talbot)  H/T: Joe Butler.

Question: Have you ever milked a cow?