I've had a few of incidents
Sea lions hate to be ignored and will pester you by pulling on hoods, snorkels, fins, strobes, and hoses. Especially when the water is colder and the number of divers dwindles, they just get bored and we are such fun to mess with. One time they pulled a buddy's snorkel off and played keep-away between themselves for a while before we could retrieve it.
Swimming over a rock pile filled with Sergeant Major nests, one brave parent grabbed the end of my little finger and was tearing it up. He/She did not let go for a minute or so. Enough time for pictures and a video, but alas they were lost in an electronics abduction. That's why my signature line says, "If damsels had teeth, nobody would swim in the ocean."
A 16" grouper swam up to me and kind of faced off. I was curious as to what he was up to and noticed his eyes were looking me up and down. He slowly moved in and halfheartedly bit the white leather palm of one of my gloves. I was startled but didn't flinch or pull back. He tugged a little, then let go, backed up and had what I thought was a confused look. He moved in, bit the other glove in the same manner and moved back again. It was about now I realized I had eaten crab tostadas for lunch between dives and probably had crab "smell" on my hands. A couple of groupers joined him and followed us for the rest of the dive.
The most unnerving incident was two weeks ago on Klein Bonarie, as I was swimming 15 feet above the reef while returning from a dive. I saw a Spotted Moray in the open looking up at me. As I passed over him, he left the bottom and started snapping at my leg. I turned on my side, bent at my waist and swam backward for all I was worth. I wondered who was going to tire first as he kept snapping his jaws about 6" from my thigh. After 20 to 30 seconds, he headed back to the bottom. Okay, so he didn't actually bite me, but it is the most alarmed I've been in my 400 dives.
It was a couple minutes later I came upon a Lionfish hunter with a couple fish in his Zookeeper. A little blood in the water and I'm pretty sure a hunter has hand feed that moray before and he is making the association between divers and a handout. I now give morays a wider berth in Bonaire, than the rest of my dive spots.