Precarious right

PRECARIOUS RIGHT. The right which the owner of a thing transfers to another, to enjoy the same until it shall please the owner to revoke it.
     2. If there is a time fixed during which the right may be used it is then vested for that time, and cannot be revoked until after its expiration. Wolff, Inst. Sec. 833.

References in periodicals archive ?
PAUL TURNER WORKING with the backs at Wasps at present where everybody's future prospects are precarious right now.
Without doubt we are living in very difficult times, and there will be those among the readership of this journal whose own job security is very precarious right now.
Steeplejacks were going to start to make the steeple safe today as several stones remained loose and precarious right at the top.