I've always read people ranting about the Stihl flippy caps and thought, "hmmm, I like them"....well, after work tonight I was bucking up some red oaks a neighbor was giving me. I filled up the gas and was having a hard time getting the oil cap back on but thought it was on good.....walked over to the tree, cranked the saw and it happened to die. Pulled it a few times and glanced down...oil soaked jeans and boots. I still don't hate them but it sure irritated me.