Dry Cleaners, Part 2

Well, I've gone to these people twice. The first time, I was quite pleased. I was very impressed because the dry cleaning didn't cost me very much and they did a good job with my suits. So of course I used them again. However, this second time around, I feel like some of my suits "shrank." What is that all about? I thought they just used chemicals to "wipe" down my suit... not put them in a laundry type machine. Does anyone know? Is it possible for suits to shrink at the cleaners?!!!?