A few days later, I was reminded of the oft-quoted statistic that every human year equates to seven dog years. This mental calculation looms more largely in an owner's mind as a dog gets older, and thoughts turn to how long the pet has left.
But if that stat were really true then Meg would have been 135 years old when she died, which seems very unlikely.
No human is known to have lived beyond 122.
So if the seven dog years to one human year is wrong how do we work out an accurate calculation?
"If you think about statistical correlation between average life span and body size in mammals it generally tends to be positive - gorillas, elephants and whales are much longer lived than shrews, voles and mice," says Daniel Promislow, professor of genetics at the University of Georgia.
That would lead you to believe that Great Danes would live longer than Chihuahuas but it's the other way round.