During the pandemic / lockdown I was lucky enough to visit one of the reef pontoons off Cairns (Australia, on the Great Barrier Reef) that had been shut for several months. The resident Maori wrasse (a very large fish) at this pontoon, and others, has been known to have a relationship with some of the regular staff - often rubbing up against them in the water. When we jumped in the water that day the fish's reaction was the wildest thing I've ever seen. It was like a small puppy who has been locked inside all day. It literally jumped into my arms, flapping its tail to get closer. I'm going to repeat - this is a big fish, maybe a metre long and stocky, covered in a nice thick layer of slime. It would then swim away and come back and rub up against us. It did this to all three of us in the group ... only one of us was a regular. She hung with us for the whole snorkel and it was a bit sad when we had to get out of the water. Amazing experience. Made me feel differently about wrasses, that's for sure.