Argumentative addition (sans compter que)

When recounting a disastrous date, you might find yourself piling up a long list of complaints.

To introduce a decisive final argument—the ultimate "nail in the coffin"—use the phrase sans compter que (not to mention that / besides the fact that).

not to mention that
sans compter que

Because you are adding factual information, the verb that follows sans compter que is always in the indicative mood (such as the present, passé composé, or imparfait), never the subjunctive. Note that que contracts to qu' before a vowel or mute h.

This romantic date was the most dreadful, not to mention that he was late.
Ce rendez-vous galant a été le plus épouvantable, sans compter qu'il était en retard.

This structure is perfect for chaining together unpleasant traits when detailing everything that went wrong.

This egocentric man monopolized the conversation, not to mention that he asked me no questions.
Cet homme égocentrique a monopolisé la conversation, sans compter qu'il ne m'a posé aucune question.
He was rude, and even pretentious, not to mention that he was chewing loudly.
Il était grossier, voire prétentieux, sans compter qu'il mâchait bruyamment.
I would like to forget this stingy guy, not to mention that he refused to pay the bill.
J'aimerais oublier ce type radin, sans compter qu'il a refusé de payer l'addition.