Growing Up Fast - After receiving the sweetroll, Andy eviscerates the cake with his circular saw and Butch accosts the Wanderer demanding he/she gives up the sweet roll.
A variety of options are given for response: a simple dismissal, an attempt to share, a spiteful spit on the roll before giving it up, to a vicious verbal jab at his mother's drinking habits. Most responses will provoke Butch to get up and begin throwing punches at the Lone Wanderer, which prompts Officer Gomez to intervene.
The "Sweetroll Scenario" is a running gag and scenario often postulated in character generation sequences in Bethesda-made games. Fallout 3 is the first time that the scenario is actually acted out instead of simply postulated.