In that case, your scarf is likely to turn out really, really long; you also risk running out of yarn. (thespruce.com)
There's some logic to that, but it completely ignores the astonishing risks you run when investing in any bank! (wexboy.wordpress.com)
One of the biggest risks you run into when paying your mortgage with a credit card is that the transaction will go through as a cash advance. (valuepenguin.com)