A Cas Walked Up To A Lemonade Stand

Day 1

"What the hell are you humming?" Dean asks Cas, who has been wandering around aimlessly for the past 3 days, humming what seems like the same song. Cas didn't say what song, but he went up to Dean and sang:

"A Cas walked up to a really hot man and said to the man, with a drink in his hand; 'Hey,' bum bum bum, 'got any burgers?' And the man said..." Cas trailed off, waiting for Dean to sing his part.

"'No, we just have beer, but it's cold, and it's fresh, and it's all store bought. Can I get you a bottle?'" Dean said, standing up and going to the fridge, still in his pajamas to get his angel a bottle of beer.

"And the Cas said, 'I'll pass' and he waddled away (waddle waddle) 'til the very next day..." Cas finished as he disappears, leaving Dean very confused.