Fleetwood Macs Rumours album is notorious for the fact the the interband romantic relationships were in turmoil. Not the least of which was that fact Christie McVie (keyboards/vocals) and John McVie’s (Bass) marriage was on the rocks! Christie ended up having an affair with the band lighting director. The thrill of a new romance inspired this song. To keep things light during the recording of it she told John McVie it was about her dog!