Do you assume women with short hair are lesbian?

Saw a friend at a restaurant tonight so we said hi. He hadn't met my wife yet and she was with me, but he thought she was just a friend at first.

It's not that uncommon for people to assume we're friends or siblings instead of a couple, but in this case he actually told me it was because she had short hair he assumed she was lesbian.
Image: @lynnettessilhouettes
Image: @lynnettessilhouettes
I do know a few lesbians and more of them definitely have short hair than straight women do, but still at least half of women who have short hair are not lesbians. So why would someone just assume based on hair, when that's not really a good indicator?
Do you assume women with short hair are lesbian?
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