I aint is an old but still used negation of to have. So: "Got your ticket"? "I aint"! However this is heading into regional variance territory. Granny Weathe

I aint is an old but still used negation of to have. So: "Got your ticket"? "I aint"! However this is heading into regional variance territory. Granny Weatherwax (Discworld witch) famously wore a sign saying: "I aten't dead" when off Borrowing.