Patrons of the Santa Ana Zoo got a big surprise on Tuesday when they saw a man swing from the trees toward a monkey exhibit all while claiming to be Tarazan.

Cops say that 37-year-old John William Rodenborn was also shirtless, covered in mud, and (this will surprise you) was under the influence of meth.

A spokesperson for the zoo said the monkeys were unharmed and the zoo remained open as normal.

Ridenborn was arrested for drug possession.