The context of the following conversation is Riley had procrastinated too long on his homework so when he got home he started immediately.:
Riley says My homework is due tomorrow and I had 3 weeks to do it..
The friend responds I finished mine last week. Why did you wait so long?.
Riley responds I thought it was going to be easy so I kept putting it off. I started it immediately after getting home..
The friend responds Well, don't let me stop you. Call me when you finish the assignment..