San Diego police are still trying to find the suspect in what they’re calling the “This Ain’t No Joke” robbery series: A Cold Stone Creamery, one Pinkberry and one TF Yogurt robbed within 90 minutes Sunday. The crime method was the same in all five cases. The robber burst through the door and yelled something like “This ain’t no joke:

I’m serious. This is a robbery.” Later that day, comedian Louie Anderson surrendered without incident.