This really nice thread on riding the bus from @sam got me thinking about all the times I rode the Greyhound across the country way back when.
I used to crochet back then too, before my eyesight deteriorated with age, and my academic colleagues typically saw this as a mildly transgressive gender-bending hobby, of which they approved on those grounds. On the Greyhound, though, the typical assumption was that I'd learned in prison, where crochet is apparently a popular pastime.