I am used to throw trapeezees as high as I I can. One day, I did this, and I didn`t catch the top with the string and the top hit the ground, and ...rebotò (I mean, the impact did the top to go up again) and hit me right in my left eye ang was so strong this hit, that even, I couldn`t open my etye, and start to cry, and when I arrived home, saw myself in the mirror, and was completetely closed amd violet, like if I had been into a fight and would have received a fist hit in my eye.
So, most of times, I use plastic glasses when i throw so high trapeezes.