LOL! Grasshopper Tennis! That's funny Charlie.
Luckily, I found the problem. My husband suggested that it had to be snails since they all seem to come out at night to eat. He found one on one of the blooms yesterday. I figured it couldn't hurt to put some snail and slug killer around the perimeter of the hibiscus over night. Why not? I had one new bloom yesterday that needed to be saved.
Sure enough...I found 16 snails the next morning outside of that perimeter. I still think it's weird that the snails never ate any of the leaves, but I'm glad my hibiscus isn't infested with any other problems.