A tradition in the Deep South. Basically, a man in white robes plants a wooden cross in a new neighbor's yard and sets it on fire. Not a symbol of Southern Intolerance.
Hey, my new neighbors planted a Welcome Cross in my yard last night. At first I thought it was because they hated me because I was a Yank, but they then brought me some lemon squares and fried cornbread. Man these Southerners are very hospitable and kind!
"Goddammit! My neighbor's Welcome Cross burned down my house!"