Only two.......took a ricochetted 22 round in the shin, while teaching my girlfriend to shoot years ago. Under the brushpile we were shooting into, there was a huge old tractor tire. I didn't tell her about the ricochet, we walked home, and I had to pry the bullet out of my leg with a screwdriver. She was impressed, when she finally figured out what I was doing.
The other one was kind of impressive, but not to me. I was shooting a 41 Magnum at a dump on a FREEZING cold day. My face was numb, and I never felt a piece of bullet jacket come back and hit me on the cheek. A few minutes later a guy drives by, sees me, and slams on the brakes, then runs down the hill toward me, panicked. He was asking me if I was okay, and I was nodding, not sure why he was asking. But my cheek was dripping blood onto my jacket over my heart, and it looked like I'd been shot in the chest. Even funnier was that the blood had frozen where it landed, and I peeled it off as a 4-inch circle, like a decal.
After 30+ years of shooting, just those two, I must be doing it right!
PJ