Yep, the gentleman is not being rude and as he says you have to get on your dancing shoes and tread carefully accross the wooden joists in the roof being careful not to fall between and stick a leg through the ceiling. Then you will have to assess as to if it has merely 'stuck' or it needs replacing. If it has 'stuck' then it maybe, it soon needs replacing or repairing.
Alternatively, a local plumber will charge you an hours work.
Plumbo
December 2010