Been playing golf for about 30 years, now a 6 HC. Not only had I never had one, I've never even witnessed a HIO in any group I've played in. Got my revenge on a hole that's killed me for a couple of years. Slight wind in the face, chose 7 iron from 178 yards. Hit right of the pin and about 10 feet past into an upslope, sucked back, and disappeared! Didn't believe it till I checked the hole.