R.I.P. Don Knotts, 1924-2006.
At least he wasn't nipped in the bud. My Dad - a HUGE Andy Griffith Show fan - is probably curled up in the fetal position right now.
As a tribute, here is an mp3 of Dana Gould's classic stand-up bit about Don Knotts's inability to make obscene phone calls due to his distinctive voice (the file begins with a great "Vincent Price pickin' up the ladies" piece).