at one's

at one's

In addition to idioms beginning with at one's, also see idioms beginning with at someone's.
References in classic literature ?
One sits by one's self, it is true, but one thinks; one opens one's favorite book and reads one's favorite story; one speaks to one's aunt or one's brother, fondles one's cat, or looks at one's photograph album.
One might even have someone else at one's beck and call, to minister to one's needs at the snap of one's fingers.
It must be tempting to use one's power more than necessary, to use it at one's disposal, to use it for selfserving purposes.