It's the Architect Sketch.
Mr. Wymer: Frankly, I think the central pillar may need strengthening.
Client 2: Is that going to put the cost up?
Mr. Wymer: I'm afraid so.
Client 2: I don't know we need to worry too much about strengthening that. After all, these are not meant to be luxury flats.
Client 1: Absolutely. If we make sure the tenants are of light build and relatively sedentary and if the weather's on our side, I think we have a winner here.
Nearly as ironic as the local fire house burning down.
Also, in "Cycling Tour" (my favourite MPFC episode), there is a scene in a hospital's Casualty Ward where there is a continuous series of accidents.