Apparently, if there's a leak they re-schedule the exam for the end of them. How long do the leaving certs go on (being an A level lad)? If it's around 2 weeks then no excuse imo.
Incidentally, whilst the point about there always being something in those questions to upset someone is valid, I don't think it's as common for a question to upset whole schools. Response from those responsible also insensitive imo.