'Women. That was the problem; he was going into space today, so now was the time to set feminine confustications aside...' - Parallel Extinction by Todd R. Stevens, soon to be published
Someone or something that bites your ankles.
To a postman, an ankle biter is often known as a dog.
To an adult, an ankle biter may be a toddler.
To hikers, an ankle biter is sometimes a tick.
And so on.