sick as a dog.....

Factual Questions
1

a simple question, where did the saying sick as a dog from?? thanks

2

Michael Quinion runs one of the better researched etymology sites out there.

Read his explanation http://www.worldwidewords.org/qa/qa-sic1.htm

3

My wife is a flight attendant. Recently, she had a seeing-eye dog get sick on one of her flights. She said that she learned first hand what the saying “sick as a dog” meant.

4

thanks for clearing that up