*Without the intervention of the Omnitrix or alien threats, Gwen looks back on the summer vacation Max took her and Ben on as "the worst summer ever" due to it being very bland and uninteresting.

In And Then There Were None, she is studying at Ben's house. When he arrives with Max, Ben starts a conversation with his cousin. They remember their childhood, especially the worst vacation they had while eating their grandfather's "delicacies".*