4 bites in 30+ years is pretty amazing. I've had that many in a day. My mind takes me back to a young Biak GTP I had or the three young Blood Pythons I got. Needles to say I've lost count of how many times I've been tagged. I certainly don't try to be but at the same time I'm really not bothered by it so I've never not done something just to avoid a bite. Some were just crazy too like my BRB climbing on me so calm and then suddenly bite my stomach going right back to being calm and climbing around.
The only one I've had that tried to eat me was a Western Hognose. Latched on the side of a finger and I had to pull her off. She was chomping. Finger swelled a bit and was a little numb from the venom but nothing to worry about.