He felt he was intruding, and that at a sacred moment—the moment of the arrival of the library.
When there are no doors, one should be even more careful about intruding.
It was then I became quite aware I was intruding: of which I had been fearful before.
I beg your pardon, Mr Pecksniff: I beg your pardon for intruding; but—'
Had he not always felt angry with Panacci for ...