How to get away from ticket controllers Ubahn Sbahn

I have tried this and it worked. I told them that I forgot my wallet at home and I was on my way back. to get it. They let me go for that time. If they wanted to take me out of the train and call the police I would just act like I found it. I know it is a cheap shot but if you don´t have a better idea, worth to try 🙂