American Staffordshire Terrier vs Whippet

This breed carries some of the most restrictive breed-specific legislation of any dog worldwide — outright bans or ownership conditions exist in multiple countries and in various US cities and counties — and many landlords and home-insurance policies exclude the breed by name regardless of an individual dog's temperament or training.

A Whippet's skin is almost paper-thin with almost no fat or coat to protect it, so ordinary scrapes, thorny brush, or roughhousing that wouldn't mark a Labrador can tear it open — and its sighthound prey drive means it will not reliably come back if let off-leash in an unenclosed space, no matter how well trained, full stop.