Both sentences would be ok, in different contexts:
1.
{Mobile rings} 'Hello? MrPedantic! Hey! We're all here waiting for you at Maj's bar. What's keeping you?' 'I'm stuck in this goddam one-way system again. How do I get out?' 'But I told you before! Weren't you listening?' 'Ok, ok...Listen, I need some more help to get there. I don't k