Hi everyone. I was just looking at some doggie stores today, and I found a listing for a harness. Some look like dresses and vests. Now, are these okay to use with a Yorkie? Are they better than using a regular collar? I know some have problems with collapsed tracheas (sp?), so would a harness be better? Does that cause the front legs to be pushed out? Just thought I'd see what everyone else thinks. Thanks!