Per Devlin J in Heskell v Continental Express Ltd  1 All ER 1033 at p.1048:
Common sense is a blunt instrument not suited for probing into minute points, …
Lord Wilberforce in Liverpool City Council v Irwin  2 All ER 39 cited dictum of Bowen LJ in Miller v Hancock  2 QB 177 at 180, 181 describing typical relationship of landlord and tenant in multi-occupational dwellings and said at p.45:
Certainly that case, as a decision concerning a claim by a visitor, has been overruled (Fairman v Perpetual Investment Building Society  AC 74). But I cite the passage for its common sense as between landlord and tenant, and you cannot overrule common sense.