And the public isn't happy: Last week, SeaWorld reported an 84 percent drop in net income for its most recent quarter.
This isn't the first time Steve-O has gotten in trouble for his anti-SeaWorld efforts: He received a traffic citation last year for vandalizing a SeaWorld exit sign so it read "SeaWorld sucks."
"I have a pretty passionate stance against animal cruelty, as everyone knows," Steve-O told The Dodo at the time. "It's magical if I can take a wild and crazy stunt and do some good. Here I am setting out to entertain people and then I can do something to make a difference."
He has another message for fans this time - though this one's a bit more urgent. "Anyone wanna bail me out of jail?" he wrote on Facebook.