I wasn't in Aikido, but I bruised the holy hell out of my ribs by botching a fall... It hurt like hell for about 3 weeks. I think its much easier to hurt your self in Shuai Chiao as it is more aggressive of a throwing art. Its much more direct & aggressive than Aikido. There was a Aikidoka in our SC class and he had a hard time adjusting to SC. He also had a hard time pulling off Aikido throws because of how circular they are...this gives experienced players the sign that he's about to throw you and you've got to stop him.
As for injuries, everyone in my class had to take a subatical recently. My sifu's senior student broke a couple ribs, my Sifu messed up his shoulder. Shake broke his toe when I dropped him mid-throw (he's lucky he didn't break his neck), and I bruised my ribs pretty badly when I was dropped mid throw. Two out of four injuries happend on "Wet Mat Training Night". It was fun while it lasted.
CPA's current P4P List:
-Bas Rutten
-Captain Jack Sparrow
-Cindy Lauper
-Lester Moonvest