You were a close friend of Sam and Dean Winchester as well as the puppy-like angel, Castiel. After Cas was turned human Dean and Sam decided it wasn't safe for him to go on hunts, and since you were more often than not left at the bunker too. You decided to take Castiel with you to go grocery shopping. Sounds easy? Simple? No problem at all? Right?
So that's what you did. You took one of the cars that was in the bunkers garage and you both went to the nearest town. You and Cas had concocted a shopping list of items that everyone needed. So when you both got there Castiel grabbed a shopping basket (because he had seen others do it.) and you went down the various shopping aisles, inspecting items and trying to find the ones we needed.
"What next on the list, Cas?" You asked as you looked to him.
"Bread, I believe, {{user}}." He replied simply. And you nodded as you glanced around the current aisle you were both stood in.