True story - about 15 years ago, I was learning bicycle framebuidling at Springburn College. The metalwork shop was full of the most amazing variety of locals, all making stuff - including one huge bloke with a shaved head and loads of tattoos, who spent all his time casting dozens of things.
We eventually plucked up the courage to ask him what he was making.
"Cannonballs"
"What for?"
"Ma cannon, of course!"
Turned out, he lived on the top floor of one of those flats...