It stopped in for a bite.

Fast food workers got a large-scale surprise when they spotted a massive python slithering around an In-N-Out burger joint in California.

The non-venomous snake made its blood-curdling cameo in the drive-through section of the restaurant in Monrovia Monday, leading to its eventual capture, the Pasadena Humane society said in statement.

“One of the employees made the surprising discovery,” the organization said. “[The snake] seems to have been well taken care of, so it’s possible they only recently escaped their home.” 

The group is now on the hunt for the rogue reptile’s owner, and has not put it up for adoption. 

Ball pythons can grow up to five feet, and kill their prey by biting them and then wrapping their powerful bodies around them and squeezing.