What do you perceive as the most and least gendered jobs/careers?

For example nursing is a predominantly female field, while construction is a predominantly male field. What others are out there with strong gender trends? Which jobs do you have NO expectations of gender for? (As in, you think there's roughly a 50-50 chance that a given employee is either gender.) Would love to see some more obscure jobs/careers out of personal curiosity.

What do you perceive as the most and least gendered jobs/careers?
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