I wonder how a fictional character can make me feel so inept at something I love doing. Is one truly "bad" at something when an anime girl can do it better?
In all seriousness, however, go watch K-On!. Like, right now. Stop what you're doing, and go watch K-On!
1). While getting mustard, accidentally hurt another employee you considered your friend, making them as mad as they could be. 2). While getting a 3 gallon refill bag of ketchup, be a complete idiot and install it wrong, making a huge mess every where. Allow that same employee to get even madder than before.