The remaining energy of the pocket dimension apparently gains sentience and curiosity.

In his pocket dimension, however, Agamotto's behavior is rather erratic.

The Doctor was stripped of his powers and imprisoned in a pocket dimension 20 million years in the past.

To accommodate the entire human population, pocket dimensions are created around Japan to house the populace.

Eon made a doorway to his pocket dimension in Quasar's business office.

He is likely to be there for some time, as the effect only wears off in daylight, which does not occur in the pocket dimension.

Lost (2004-2010) - The Island is contained in a pocket dimension.

The Cold is a pocket dimension with unknown topology.

"Once we're inside, it will recede into a pocket dimension of its own making."

In Set's case, it created its own 'pocket dimension' to hide, but lacked the power to escape from it by itself.