Have a police report:

“Two masked suspects apparently wanted to rob a discount retailer in Alt-Treptow on Wednesday evening. At 21:55 they entered the store in the Wildenbruchstraße. Then they shouted that this was a robbery. The three 44, 48, and 51 year old employees were in the back room of the store, so the suspects couldn’t see them. Irritated to have chanced into an apparently empty store the masked people left the store as quickly as they had come and took off without their loot in an unknown direction.”