Sorry, when people say "I can't imagine that," they're usually talking about their own lack of imagination, and not about the unlikelihood of the event that they're describing.
Me vjen keq, kur njerezit thone  "nuk mund ta imagjinoj kete" ata ne te vertete po flasin per mungesen e tyre te imagjinates, dhe jo per pamundesine e ngjarjes qe ata po pershkruajne.