Complicated

On Saturday, while Dom takes Chloe to her 45 mins music class, I take Lucas to grocery shopping. Once, while I was almost done shopping, with all the frozen food in the trolley, Lucas suddenly said, "I need to go to the toilet". I was a bit annoyed cause I was trying to pay for the food, put the food in the cooler bag and load them in the car boot.

Lucas: Mom, I need to go to the toilet.
Me: sigh...why are you so cumbersome?
Lucas: Why are you so complicated? I'm in a rush!
Me: (parked the trolley along the aisle and run to the toilet with him)