I'm mostly surprised that your mother asked you why you didn't go in the first place...Did she expect you to say that you'd decided to go to aversion therapy instead or something?

Totally tangential, but you refer to your parents as "mother unit" and "father unit"? I thought it was only my (crazy) family who did that, and if I'm remembering correctly we picked it up originally from some 1980s t.v. show my sister liked that featured a robot-daughter that used the terms. What prompted you to use them?