Fridges switch themselves on and off regularly as they keep their temperature between 2 and 4 degrees celsius.

2000, John R. Gyakum and Richard E. Danielson, Monthly Weather Review, Volume 128, page 851, Analysis of Meteorological Precursors to Ordinary and Explosive Cyclogenesis in the Western North Pacific.

At first he was partly hidden among the latschen, then his hind-quarters, quite black, emerged from the dark green bushes, as he slowly moved on, perfectly unconscious of our neighbourhood.

Substitution is the nomination of substituted heirs, who take place, failing the institute.