Translation of diskreditieren

Although I put my wallet in the front pocket of my pants it was not there. I had been so diverted by the aggressiveness of these kids that I did not feel it when they grabbed it out of my pocket.
You may know that most young students fly South on spring break. You can imagine how the parties look like down there, and how many drugs are consumed during this vacation. I prefer the quietness.
Some of the people had invited me for dinner and I joined them. I soon found out that they were eating at their apartment and were cooking by themselves. I found myself peeling raw potatoes.