Once, almost a second time. About 2 years ago I was riding near a golfcourse, I hear a ball hit next to me then bounce up and hit me in the ribs. Later I met another rider that was hit by a golfball , fell and broke his collarbone. Ended up getting money and upgrade his bike to a pretty nice full carbonfiber roadie! Heck, if I had known! Nah, wouldn't have worked for me, I'm not a very good actor!
Last week I was riding in the same area when I hear a ball hitting the branches. It was hitting the very edges so it still had some speed. It bounced right in front of me. I tried to reach up to grab it but it bounced too high and no way could I jump up from the bike! It bounced about 6 inches over my hand or I would have had me a shiny new golfball.
I'm not sure if it's luck that I haven't actually been hit or or bad luck cause maybe somebody is aiming for me!