I have one and attempted to use it on my oldest dog and boy was she dramatic with it, she gagged and everything. It wasn't to tight , the princess just was mad she couldn't get to her butt. It worked fine on the younger golden.
Misty- Samoyed Mix
Tannor- Golden Retriever CGC
Robyn- German Shepherd CGC, TC
Midnite-German Shepherd CGC, TC
Brennan- Golden Retriever CGC