Lois: [sighs] Did you call that girl?
Malcolm: Yes, I called her and told her I couldn't go to the concert and now she's probably going to invite someone else.
Lois: Well, Malcolm, I'm sorry that my mother's sister - the woman who took care of me every day after school - had to die and inconvenience your social life. [walks away]
Malcolm: [to camera] She does it on purpose. I could have made up a million different escape plans but now my brain is filled with mom guilt.