Sister and I have booked on a 'once in a lifetime' small ship cruise (at enormous expense). We have been looking forward to it so much until yesterday. Then a fellow member of one of my DS's groups overheard her talking about it and was overjoyed to announce that she and her DH have booked the same cruise and as they 'don't like to socialise with strangers' will be able to join up with us. 
You need to understand that this couple are the most boring people on earth. Their sole conversation consists of bad mouthing other people and repeating gossip. The husband can get drunk on half a pint of lager and then becomes really obnoxious, racist, homophobic, misogynist, etc. His wife just laughs this off.
Our dream cruise has lost its shine. We were looking forward to mixing with fellow cruisers of all nationalities - now we are wondering how can we avoid them on a small ship? HELP!