Now, if in a stage coach in the depth of winter, when three passengers are warm and snug, a fourth, all besnowed and frozen, descends from the outside and takes place amongst them, straightway all the three passengers shift their places, uneasily pull up their cloak collars, re-arrange their "comforters," feel indignantly a sensible loss of caloric—the intruder has at least made a sensation.
Source: wiktionary