I haven’t heard of any incidents either.

I don’t think the pool edge is the biggest risk in a pool. It is much more likely the people helping and coaching get a paddle in their face.

It happened to me in Venice last summer. We were teaching some of our guests to roll on the beach. I stand in the water on the safe side of somebody attempting a roll, and he gets confused and does a very fast attempt on the ‘wrong’ side, so I got a rather hard blow to my face with a greenland paddle. It hurt 🙁 He did learn to roll, though.