*Giggle*
I would have taken it as a compliment too.
Back when I was younger and worked in a stable I wore flannel shirts, jeans and workboots, gloves to protect my hands and my hair stuffed up under a hat. From behind I was often mistaken for a guy, especially when I was working on repairs with the tractors. It was always amusing to turn around and see the look on people's faces as it dawned on them they had just been talking to a chick and not a guy.